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Annotate Windows interop declarations with [SupportedOSPlatform("windows")] - #132778

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Annotate Windows interop declarations with [SupportedOSPlatform("windows")]#132778
pavelsavara with Copilot wants to merge 20 commits into
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CopilotAI commented Aug 26, 2026•
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Annotates the platform-specific DllImport / LibraryImport / UnmanagedCallersOnly declarations under src/libraries/Common/src/Interop/Windows/** with [SupportedOSPlatform("windows")], and annotates or gates their callers accordingly.

This lets the wasm CoreCLR P/Invoke scan (PInvokeCollector) skip these declarations on browser/wasi — removing WASM0066 noise at the source — and makes them visible to CA1416 platform-compatibility analysis.

Contributes to #132776

Scope

  • Windows interop only — all 38 modules under src/libraries/Common/src/Interop/Windows/. Unix/macOS interop is not part of this change.
  • The attribute is guarded with #if NET so the shared files still compile for netstandard/netfx consumers (e.g. TestUtilities on net481), where SupportedOSPlatformAttribute does not exist.

Approach

  • Declarations. Every Windows P/Invoke / UnmanagedCallersOnly declaration is annotated. Type-level (coarse) annotation is used on the Interop. partial class where safe; per-method annotation is used where a module's const/struct/enum members are consumed by cross-platform code — e.g. the public enums in System.Net.Primitives (SslProtocols, SocketError, …) whose values derive from Interop.SChannel.* / Interop.Winsock.* / Interop.Crypt32.* — so those members stay platform-neutral. Kernel32, Advapi32, Crypt32, BCrypt, and WinSock are per-method; the remaining modules are type-level.
  • Managed wrapper helpers. A helper that calls an annotated P/Invoke is itself annotated [SupportedOSPlatform("windows")] whenever all of its callers are Windows-only, rather than suppressing the warning with a pragma. A #pragma warning disable CA1416 is used only where the requirement cannot be expressed as an annotation: (1) Windows-only-compiled implementation files (*.Windows.cs) whose members are invoked by their cross-platform partial siblings, and (2) the few helpers whose managed entry point is genuinely cross-platform — Interop.GetRandomBytes (the platform-abstracted RNG) and Kernel32.GetMessage (reached through the portable Win32Marshal error path).
  • Callers. Cross-platform files in System.Private.CoreLib reach Windows-only interop only through compile-time gates (#if TARGET_WINDOWS, #if FEATURE_COMINTEROP, *.Windows.cs, *.Nls.cs) that CA1416 cannot observe; those files carry scoped or file-level suppressions where a Windows annotation would incorrectly propagate to portable code.

Validation

  • System.Private.CoreLib builds clean with no CA1416 diagnostics on Windows (CoreCLR and NativeAOT) and on browser/wasm.
  • Cross-platform consumers — System.Net.*, System.Security.Cryptography, System.Diagnostics.*, System.IO.*, System.Console, System.DirectoryServices.Protocols, and others — build clean across all target frameworks, including browser, wasi, unix, linux, osx, and android.
  • netstandard/net481 consumers of the shared interop build clean.

Note

This pull request was authored with GitHub Copilot.

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CopilotAI linked an issue Aug 26, 2026 that may be closed by this pull request
Annotate all DllImport/LibraryImport/UnmanagedCallersOnly with [SupportedOSPlatform] #132776
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CopilotAI changed the title [WIP] Annotate DllImport/LibraryImport/UnmanagedCallersOnly with [SupportedOSPlatform]Research: scope [SupportedOSPlatform] annotation of interop declarationsAug 26, 2026
CopilotAI requested a review from pavelsavaraAugust 26, 2026 13:22
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Annotate NtDll interop with [SupportedOSPlatform("windows")]; guard C…
a06d5b9
…oreLib callers
Co-authored-by: pavelsavara <271576+pavelsavara@users.noreply.github.com>

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@build-analysisbuild-analysisBot mentioned this pull request Aug 26, 2026
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@pavelsavara
Annotate User32/Crypt32 interop; use fully-qualified [SupportedOSPlat…
7e42119
…form] across modules
@pavelsavara
Convert Crypt32 to method-level [SupportedOSPlatform] (consts consume…
6fa3ebe
…d cross-platform)
@pavelsavara
Annotate no-coupling Windows interop modules with [SupportedOSPlatfor…
e77d94e
…m] (coarse; method-level for WinSock)
@pavelsavara
Annotate Ole32 interop (coarse) + guard cross-platform CoreLib callers
e6647f7
@pavelsavara
Annotate OleAut32 interop (coarse) + guard cross-platform CoreLib cal…
8dec96a
…lers
@pavelsavara
Annotate Normaliz interop (coarse) + guard Windows NLS CoreLib callers
e0078f3
@pavelsavara
Annotate BCrypt interop method-level (consts consumed cross-platform)…
bd9a4f0
… + guard GetRandomBytes
@pavelsavara
Annotate Advapi32 interop method-level (structs/consts consumed cross…
1da3c23
…-platform) + guard CoreLib callers
@pavelsavara
Annotate Kernel32 interop method-level (structs/consts consumed cross…
e6b4939
…-platform) + guard CoreLib callers
@pavelsavara
Annotate IsGetConsoleModeCallSuccessful helper [SupportedOSPlatform] …
beb36ec
…(wraps windows-only GetConsoleMode)
@pavelsavarapavelsavara changed the title Research: scope [SupportedOSPlatform] annotation of interop declarationsAnnotate Windows interop declarations with [SupportedOSPlatform("windows")]Aug 27, 2026
@pavelsavarapavelsavara added this to the 12.0.0 milestone Aug 27, 2026
@michalpavelkamichalpavelka mentioned this pull request Aug 27, 2026
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/azp run runtime-extra-platforms

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/azp run runtime-extra-platforms

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pavelsavara marked this pull request as ready for review August 28, 2026 21:45
CopilotAI lite review requested due to automatic review settings August 28, 2026 21:45
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Pull request overview

This PR broadly annotates Windows-specific interop declarations with [SupportedOSPlatform("windows")] and updates/gates callers (primarily via CA1416 suppressions in Windows-only or Windows-gated code) so platform-compatibility analysis and wasm P/Invoke scanning can correctly skip Windows-only entrypoints.

Changes:

  • Add [SupportedOSPlatform("windows")] annotations across Windows interop declarations under src/libraries/Common/src/Interop/Windows/** (and select other Windows-only declarations).
  • Add #pragma warning disable CA1416 (and a few scoped disable/restore blocks) in Windows-only or Windows-gated call sites across CoreLib/Common/NativeAOT.
  • Add/adjust a few Windows-only managed helpers / callbacks to carry platform annotations.

Reviewed changes

Copilot reviewed 300 out of 758 changed files in this pull request and generated 1 comment.

Show a summary per file
FileDescription
src/libraries/System.Private.CoreLib/src/System/TimeZoneInfo.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/WindowsThreadPool.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/WaitHandle.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/TimerQueue.WindowsThreadPool.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/ThreadPoolBoundHandle.WindowsThreadPool.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/Thread.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/Semaphore.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/RegisteredWaitHandle.WindowsThreadPool.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/PortableThreadPool.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/PortableThreadPool.IO.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/Mutex.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/LowLevelFutex.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/EventWaitHandle.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Security/SecureString.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/MemoryFailPoint.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/RuntimeInformation.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/PosixSignalRegistration.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/NativeMemory.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/NativeLibrary.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/NativeLibrary.csScoped CA1416 suppression around TARGET_WINDOWS interop call
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/Marshal.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/Marshal.csScoped CA1416 suppression around TARGET_WINDOWS COM interop
src/libraries/System.Private.CoreLib/src/System/IO/Strategies/FileStreamHelpers.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/IO/RandomAccess.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/IO/PathHelper.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/IO/Path.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/IO/FileSystemInfo.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/IO/FileSystem.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/IO/Enumeration/FileSystemEnumerator.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/IO/Enumeration/FileSystemEntry.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/IO/DriveInfoInternal.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/IO/Directory.Windows.csFile-level CA1416 suppression for Windows implementation called by cross-platform partial
src/libraries/System.Private.CoreLib/src/System/Guid.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/TextInfo.Nls.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/Normalization.Nls.csFile-level CA1416 suppression for Windows-only NLS interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/IdnMapping.Nls.csFile-level CA1416 suppression for Windows-only NLS interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/CultureInfo.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/CultureData.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/CultureData.Nls.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/CompareInfo.Nls.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/CalendarData.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/CalendarData.Nls.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Environment.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Environment.Variables.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Diagnostics/Tracing/RuntimeEventSourceHelper.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Diagnostics/Stopwatch.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Diagnostics/DebugProvider.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/DateTime.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/AppDomain.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/Microsoft/Win32/SafeHandles/SafeThreadPoolIOHandle.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/Microsoft/Win32/SafeHandles/SafeRegistryHandle.csFile-level CA1416 suppression for Windows-only registry interop usage
src/libraries/System.Private.CoreLib/src/Internal/Win32/RegistryKey.csFile-level CA1416 suppression for Windows-only registry interop usage
src/libraries/System.Private.CoreLib/src/Internal/Console.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Net.NameResolution/src/System/Net/NameResolutionPal.Windows.csAdd SupportedOSPlatform to UnmanagedCallersOnly callback
src/libraries/System.Data.OleDb/src/UnsafeNativeMethods.COMWrappers.csAdd SupportedOSPlatform to Windows-only LibraryImport
src/libraries/Common/src/System/Threading/AsyncOverSyncWithIoCancellation.csAdd SupportedOSPlatform to Windows-only helper type
src/libraries/Common/src/System/IO/FileSystem.DirectoryCreation.Windows.csFile-level CA1416 suppression for Windows implementation invoked by cross-platform partial
src/libraries/Common/src/System/IO/FileSystem.Attributes.Windows.csFile-level CA1416 suppression for Windows implementation invoked by cross-platform partial
src/libraries/Common/src/Microsoft/Win32/SafeHandles/SafeTokenHandle.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/Common/src/Microsoft/Win32/SafeHandles/SafeThreadHandle.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/Common/src/Interop/Windows/WtsApi32/Interop.WTSUnRegisterSessionNotification.csMark WtsApi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/WtsApi32/Interop.WTSRegisterSessionNotification.csMark WtsApi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/WtsApi32/Interop.Constants.csMark WtsApi32 constants as Windows-only
src/libraries/Common/src/Interop/Windows/Wldap32/Interop.Ldap.csMark Wldap32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Wldap32/Interop.Ber.csMark Wldap32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Wkscli/Interop.NetWkstaGetInfo.csMark Wkscli interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.WSARecv.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.WSAConnect.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.shutdown.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.sendto.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.send.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.recvfrom.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.recv.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.listen.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.getsockname.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.getpeername.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.gethostname.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.closesocket.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.bind.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.accept.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutWrite.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutRestart.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutReset.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutPrepareHeader.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutPause.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutOpen.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutGetNumDevs.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutGetDevCaps.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutClose.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.PlaySound.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.MMSYSERR.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.mmioRead.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.mmioOpen.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.mmioDescend.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.mmioClose.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.mmioAscend.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.MMCKINFO.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinHttp/Interop.winhttp.csMark WinHTTP interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinHttp/Interop.winhttp_types.csMark WinHTTP types/constants as Windows-only
src/libraries/Common/src/Interop/Windows/WinHttp/Interop.SafeWinHttpHandle.csMark WinHTTP safe handle as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketSend.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketReceive.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketGetAction.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketEndServerHandshake.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketDeleteHandle.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketCreateServerHandle.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketCreateClientHandle.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketCompleteAction.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketBeginServerHandshake.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketBeginClientHandshake.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketAbortHandle.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.Structs.csMark Windows WebSocket structs as Windows-only
src/libraries/Common/src/Interop/Windows/Version/Interop.VSFixedFileInfo.csMark Version interop structs as Windows-only
src/libraries/Common/src/Interop/Windows/Version/Interop.VerQueryValue.csMark Version interop as Windows-only
src/libraries/Common/src/Interop/Windows/Version/Interop.GetFileVersionInfoSizeEx.csMark Version interop as Windows-only
src/libraries/Common/src/Interop/Windows/Version/Interop.GetFileVersionInfoEx.csMark Version interop as Windows-only
src/libraries/Common/src/Interop/Windows/Version/Interop.FileVersionInfoType.csMark Version interop as Windows-only
src/libraries/Common/src/Interop/Windows/Version/Interop.FileVersionInfo.csMark Version interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.WndProc.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.WNDCLASS.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.Win32SystemColors.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.WaitForInputIdle.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.USEROBJECTFLAGS.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.UnregisterClass.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.TranslateMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SystemParametersInfo.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SetWindowLongPtr.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SetWindowLong.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SetTimer.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SetClassLongPtr.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SetClassLong.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SendMessageTimeout.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SendMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.RegisterWindowMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.RegisterClass.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.PostQuitMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.PostMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.MsgWaitForMultipleObjectsEx.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.MSG.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.MessageBeep.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.LoadString.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.KillTimer.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.IsWindowVisible.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.IsWindow.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.HIGHCONTRASTW.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetWindowThreadProcessId.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetWindowTextW.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetWindowTextLengthW.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetWindowLong.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetWindow.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetUserObjectInformation.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetSysColor.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetProcessWindowStation.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetKeyState.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetClassInfo.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.FindWindow.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.EnumWindows.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.DispatchMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.DestroyWindow.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.DefWindowProc.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.CreateWindowEx.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.Constants.csMark User32 constants as Windows-only
src/libraries/Common/src/Interop/Windows/Ucrtbase/Interop.MemAlloc.csMark ucrtbase interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/NegotiationInfoClass.csMark SspiCli helper as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.TokenSource.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.SSPI.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.SecurityLogonType.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.QuotaLimits.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.LsaLookupAuthenticationPackage.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.LsaLogonUser.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.LsaGetLogonSessionData.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.LsaFreeReturnBuffer.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.LsaDeregisterLogonProcess.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.LsaConnectUntrusted.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.KerbS4uLogin.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.KerbLogonSubmitType.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.AuthenticationPackageNames.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/Shell32/Interop.SHGetKnownFolderPath.csMark Shell32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Shell32/Interop.ShellExecuteExW.csMark Shell32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Secur32/Interop.LsaLogonProcessSafeHandle.csMark Secur32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Secur32/Interop.LsaFreeReturnBuffer.csMark Secur32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Secur32/Interop.LsaDeregisterLogonProcess.csMark Secur32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Secur32/Interop.LsaConnectUntrusted.csMark Secur32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Secur32/Interop.LsaCallAuthenticationPackage.csMark Secur32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Secur32/Interop.GetUserNameExW.csMark Secur32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/PerfCounter/Interop.PerformanceData.csMark PerfCounter interop as Windows-only
src/libraries/Common/src/Interop/Windows/Pdh/Interop.PdhFormatFromRawValue.csMark PDH interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.VariantClear.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.VariantChangeTypeEx.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.SysFreeString.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.SysAllocStringLen.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.SysAllocStringByteLen.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.SetErrorInfo.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.GetErrorInfo.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.PropVariantClear.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoUninitialize.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoTaskMemAlloc.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoInitializeEx.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoGetStandardMarshal.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoGetObjectContext.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoGetContextToken.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoGetApartmentType.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoCreateGuid.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CLSIDFromProgID.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.SYSTEM_PROCESS_INFORMATION.csMark NtDll interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.SYSTEM_LEAP_SECOND_INFORMATION.csMark NtDll interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.RtlNtStatusToDosError.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.RtlInitUnicodeString.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.RtlGetVersion.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.PROCESS_BASIC_INFORMATION.csMark NtDll interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.NtQuerySystemInformation.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.NtQueryInformationProcess.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.NtQueryInformationFile.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.NtQueryDirectoryFile.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.NtCreateFile.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.IO_STATUS_BLOCK.csMark NtDll interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.FILE_INFORMATION_CLASS.csMark NtDll interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.FILE_FULL_DIR_INFORMATION.csMark NtDll interop types as Windows-only
src/libraries/Common/src/Interop/Windows/Normaliz/Interop.Normalization.csMark Normaliz interop as Windows-only
src/libraries/Common/src/Interop/Windows/Normaliz/Interop.Idna.csMark Normaliz interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netutils/Interop.NetApiBufferFree.csMark Netutils interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.NetApiBufferFree.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.I_NetLogonControl2.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsRoleGetPrimaryDomainInformation.csMark Netapi32 types as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsRoleFreeMemory.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsGetSiteName.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsGetDcOpen.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsGetDcNext.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsGetDcName.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsGetDcClose.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsEnumerateDomainTrustsW.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DS_DOMAINTRUST_FLAG.csMark Netapi32 types as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DS_DOMAIN_TRUSTS.csMark Netapi32 types as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.UiPolicy.csMark NCrypt interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.SignVerify.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.Properties.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.NCryptOpenStorageProvider.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.NCryptFreeObject.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.NCryptDeriveSecretAgreement.csMark NCrypt interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.NCryptDeriveKeyMaterial.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.NCryptDecapsulateEncapsulate.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.NCryptBuffer.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.Keys.csMark NCrypt constants as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.ErrorCode.csMark NCrypt types as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.EncryptDecrypt.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.AsymmetricPaddingMode.csMark NCrypt types as Windows-only
src/libraries/Common/src/Interop/Windows/Mincore/Interop.WaitOnAddress.csMark Mincore interop as Windows-only
src/libraries/Common/src/Interop/Windows/Logoncli/Interop.DsGetDcName.csMark Logoncli interop as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.WriteFile_IntPtr.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.WaitCommEvent.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.VirtualQuery.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.Sleep.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.SetupComm.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.SetLastError.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.SetCommState.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.SetCommMask.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.SetCommBreak.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.ResumeThread.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.ReadFile_IntPtr.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.QueryPerformanceFrequency.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.QueryPerformanceCounter.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.PurgeComm.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GlobalMemoryStatusEx.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetUserDefaultLCID.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetTickCount64.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetThreadPriority.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetSystemTime.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetSystemInfo.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetStdHandle.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetProcessId.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetPriorityClass.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetNativeSystemInfo.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetLogicalDrives.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetLastError.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetEnvironmentStrings.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCurrentThread.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCurrentProcessorNumberEx.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCurrentProcessId.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCurrentProcess.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCPInfo.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetConsoleTitle.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetConsoleOutputCP.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetConsoleCP.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCommState.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCommProperties.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCommandLine.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.FreeLibrary.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.FreeEnvironmentStrings.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.FindClose.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.ExitProcess.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.EscapeCommFunction.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.CopyFile.csMark Kernel32 helper as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.CloseHandle.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.ClearCommBreak.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.Beep.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.NetworkInformation.csMark IpHlpApi interop as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.IP_ADDR_STRING.csMark IpHlpApi structs as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.ICMP.csMark IpHlpApi types/constants as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.GetNetworkParams.csMark IpHlpApi P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.FIXED_INFO.csMark IpHlpApi structs as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.ErrorCodes.csMark IpHlpApi constants as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.ConvertInterfaceNameToLuid.csMark IpHlpApi P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.ConvertInterfaceLuidToName.csMark IpHlpApi P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.ConvertInterfaceLuidToIndex.csMark IpHlpApi P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.ConvertInterfaceIndexToLuid.csMark IpHlpApi P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/HttpApi/Interop.HttpApi.csMark HttpApi interop as Windows-only
src/libraries/Common/src/Interop/Windows/HttpApi/Interop.ErrorCodes.csMark HttpApi constants as Windows-only
src/libraries/Common/src/Interop/Windows/Dsrole/Interop.DsRoleGetPrimaryDomainInformation.csMark Dsrole types as Windows-only
src/libraries/Common/src/Interop/Windows/Dsrole/Interop.DsRoleFreeMemory.csMark Dsrole P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Dnsapi/Interop.DnsTypes.csMark Dnsapi types as Windows-only
src/libraries/Common/src/Interop/Windows/Dnsapi/Interop.DnsApi.csMark Dnsapi interop as Windows-only
src/libraries/Common/src/Interop/Windows/CryptUI/Interop.CryptUIDlgCertificate.csMark CryptUI interop as Windows-only
src/libraries/Common/src/Interop/Windows/Crypt32/Interop.CryptEncodeObject.csMark Crypt32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Crypt32/Interop.CryptDecodeObject.csMark Crypt32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Credui/Interop.CredUIParseUserName.csMark Credui interop as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptVerifySignature.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptSignHash.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptSecretAgreement.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptGenRandom.GetRandomBytes.csFile-level CA1416 suppression for cross-platform RNG entrypoint
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptFinalizeKey.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptDuplicateHash.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptDestroySecret.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptDestroyKey.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptDestroyHash.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Authz/Interop.AuthzInitializeResourceManager.csMark Authz interop as Windows-only
src/libraries/Common/src/Interop/Windows/Authz/Interop.AuthzInitializeContextFromSid.csMark Authz interop as Windows-only
src/libraries/Common/src/Interop/Windows/Authz/Interop.AuthzGetInformationFromContext.csMark Authz interop as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.RegFlushKey.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.RegCloseKey.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.GetSecurityDescriptorLength.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.GetLengthSid.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.EventWriteString.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.EventUnregister.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.EventSetInformation.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.EventRegister.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.CryptEncrypt.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.CryptDecrypt.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.CryptCreateHash.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Activeds/Interop.FreeADsMem.csMark Activeds interop as Windows-only
src/libraries/Common/src/Interop/Windows/Activeds/Interop.ADsSetLastError.csMark Activeds interop as Windows-only
src/libraries/Common/src/Interop/Windows/Activeds/Interop.ADsOpenObject.csMark Activeds interop as Windows-only
src/libraries/Common/src/Interop/Windows/Activeds/Interop.ADsGetLastError.csMark Activeds interop as Windows-only
src/libraries/Common/src/Interop/Windows/Activeds/Interop.ADsEncodeBinaryData.csMark Activeds interop as Windows-only
src/coreclr/System.Private.CoreLib/src/Microsoft/Win32/OAVariantLib.csFile-level CA1416 suppression for Windows-only OLE Automation interop
src/coreclr/nativeaot/System.Private.CoreLib/src/System/Threading/Thread.NativeAot.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/coreclr/nativeaot/System.Private.CoreLib/src/System/Runtime/InteropServices/PInvokeMarshal.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/coreclr/nativeaot/System.Private.CoreLib/src/System/Environment.NativeAot.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/coreclr/nativeaot/System.Private.CoreLib/src/Internal/Runtime/FrozenObjectHeapManager.Windows.csFile-level CA1416 suppression for Windows-only interop usage

Comment threadsrc/libraries/Common/src/System/Threading/AsyncOverSyncWithIoCancellation.cs
@pavelsavara
Potential fix for pull request finding
c378461
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
CopilotAI review requested due to automatic review settings August 29, 2026 08:42
CopilotAI reviewed Aug 29, 2026
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🔵 Needs a closer look

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This was referenced Aug 29, 2026
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MichalStrehovsky
MichalStrehovsky reviewed Aug 31, 2026
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Comment thread...eclr/nativeaot/System.Private.CoreLib/src/Internal/Runtime/CompilerHelpers/InteropHelpers.cs
#if TARGET_WINDOWS
private static unsafe IntPtr GetProcAddressWithMangling(IntPtr hModule, byte* methodName, MethodFixupCell* pCell)
{
#pragma warning disable CA1416 // Only reached on Windows via TARGET_WINDOWS.

@MichalStrehovskyMichalStrehovskyAug 31, 2026

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Why do we need suppressions like this? Is this a bug in the analyzer? Can you link the bug so we can delete these once the bug is fixed?

@pavelsavarapavelsavaraAug 31, 2026

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The platform neutral CoreLib is compiled with MSBuild TargetOS set to the same platform as the machine doing the compilation.
Therefore TargetsWindows is true.
Therefore #if TARGET_WINDOWS is true, not false.

As a consequence, platform neutral CoreLib has those calls included and we get the CA1416.

Any idea what to do with that would be appreciated.

@MichalStrehovskyMichalStrehovskyAug 31, 2026

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What is platform neutral corelib? Where/how do we build it and what's the purpose?

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sorry, "neutral corelib" is wrong angle. And maybe I'm confused about TargetsWindows values.

It's those Windows P/Invokes sit in the unconditionally-compiled part of CoreLib, so they land in every CoreLib flavor including browser.

The NLS/Normaliz declarations aren't under TargetsWindows at all — they're unconditional.

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MichalStrehovsky commented Aug 31, 2026

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This lets the wasm CoreCLR P/Invoke scan (PInvokeCollector) skip these declarations on browser/wasi — removing WASM0066 noise at the source — and makes them visible to CA1416 platform-compatibility analysis.

How are we ending up with these DllImports under WASM in the first place? I would have expect us not to compile these in the first place under WASM. And why Windows specifically and not macOS/Linux?

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pavelsavara commented Aug 31, 2026

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How are we ending up with these DllImports under WASM in the first place?

Platform neutral CoreLib contains windows calls.

And why Windows specifically and not macOS/Linux?

I think we ship the runtime pack from windows machine.

This PR focuses on Windows only and I think we need to annotate OSX and Unix too (for consistency).

I just wanted to do that in a separate PRs.

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pavelsavara marked this pull request as draft August 31, 2026 18:30
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Annotate all DllImport/LibraryImport/UnmanagedCallersOnly with [SupportedOSPlatform]

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Annotate Windows interop declarations with [SupportedOSPlatform("windows")] by Copilot · Pull Request #132778 · dotnet/runtime · GitHub
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Annotates the platform-specific DllImport / LibraryImport / UnmanagedCallersOnly declarations under src/libraries/Common/src/Interop/Windows/** with [SupportedOSPlatform("windows")], and annotates or gates their callers accordingly.
This lets the wasm CoreCLR P/Invoke scan (PInvokeCollector) skip these declarations on browser/wasi — removing WASM0066 noise at the source — and makes them visible to CA1416 platform-compatibility analysis.
Contributes to #132776
Scope
  • Windows interop only — all 38 modules under src/libraries/Common/src/Interop/Windows/. Unix/macOS interop is not part of this change.
  • The attribute is guarded with #if NET so the shared files still compile for netstandard/netfx consumers (e.g. TestUtilities on net481), where SupportedOSPlatformAttribute does not exist.
Approach
  • Declarations. Every Windows P/Invoke / UnmanagedCallersOnly declaration is annotated. Type-level (coarse) annotation is used on the Interop. partial class where safe; per-method annotation is used where a module's const/struct/enum members are consumed by cross-platform code — e.g. the public enums in System.Net.Primitives (SslProtocols, SocketError, …) whose values derive from Interop.SChannel.* / Interop.Winsock.* / Interop.Crypt32.* — so those members stay platform-neutral. Kernel32, Advapi32, Crypt32, BCrypt, and WinSock are per-method; the remaining modules are type-level.
  • Managed wrapper helpers. A helper that calls an annotated P/Invoke is itself annotated [SupportedOSPlatform("windows")] whenever all of its callers are Windows-only, rather than suppressing the warning with a pragma. A #pragma warning disable CA1416 is used only where the requirement cannot be expressed as an annotation: (1) Windows-only-compiled implementation files (*.Windows.cs) whose members are invoked by their cross-platform partial siblings, and (2) the few helpers whose managed entry point is genuinely cross-platform — Interop.GetRandomBytes (the platform-abstracted RNG) and Kernel32.GetMessage (reached through the portable Win32Marshal error path).
  • Callers. Cross-platform files in System.Private.CoreLib reach Windows-only interop only through compile-time gates (#if TARGET_WINDOWS, #if FEATURE_COMINTEROP, *.Windows.cs, *.Nls.cs) that CA1416 cannot observe; those files carry scoped or file-level suppressions where a Windows annotation would incorrectly propagate to portable code.
Validation
  • System.Private.CoreLib builds clean with no CA1416 diagnostics on Windows (CoreCLR and NativeAOT) and on browser/wasm.
  • Cross-platform consumers — System.Net.*, System.Security.Cryptography, System.Diagnostics.*, System.IO.*, System.Console, System.DirectoryServices.Protocols, and others — build clean across all target frameworks, including browser, wasi, unix, linux, osx, and android.
  • netstandard/net481 consumers of the shared interop build clean.
Note
This pull request was authored with GitHub Copilot.
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Annotate all DllImport/LibraryImport/UnmanagedCallersOnly with [SupportedOSPlatform]
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[WIP] Annotate DllImport/LibraryImport/UnmanagedCallersOnly with [SupportedOSPlatform]Research: scope [SupportedOSPlatform] annotation of interop declarationsAug 26, 2026
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Annotate NtDll interop with [SupportedOSPlatform("windows")]; guard C…
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Annotate User32/Crypt32 interop; use fully-qualified [SupportedOSPlat…
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Convert Crypt32 to method-level [SupportedOSPlatform] (consts consume…
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…d cross-platform)
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Annotate no-coupling Windows interop modules with [SupportedOSPlatfor…
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Annotate Ole32 interop (coarse) + guard cross-platform CoreLib callers
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Annotate OleAut32 interop (coarse) + guard cross-platform CoreLib cal…
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Annotate Normaliz interop (coarse) + guard Windows NLS CoreLib callers
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Annotate BCrypt interop method-level (consts consumed cross-platform)…
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Annotate Advapi32 interop method-level (structs/consts consumed cross…
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Annotate Kernel32 interop method-level (structs/consts consumed cross…
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Annotate IsGetConsoleModeCallSuccessful helper [SupportedOSPlatform] …
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Research: scope [SupportedOSPlatform] annotation of interop declarationsAnnotate Windows interop declarations with [SupportedOSPlatform("windows")]Aug 27, 2026
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Pull request overview
This PR broadly annotates Windows-specific interop declarations with [SupportedOSPlatform("windows")] and updates/gates callers (primarily via CA1416 suppressions in Windows-only or Windows-gated code) so platform-compatibility analysis and wasm P/Invoke scanning can correctly skip Windows-only entrypoints.
Changes:
  • Add [SupportedOSPlatform("windows")] annotations across Windows interop declarations under src/libraries/Common/src/Interop/Windows/** (and select other Windows-only declarations).
  • Add #pragma warning disable CA1416 (and a few scoped disable/restore blocks) in Windows-only or Windows-gated call sites across CoreLib/Common/NativeAOT.
  • Add/adjust a few Windows-only managed helpers / callbacks to carry platform annotations.
Reviewed changes
Copilot reviewed 300 out of 758 changed files in this pull request and generated 1 comment.
Show a summary per file
FileDescription
src/libraries/System.Private.CoreLib/src/System/TimeZoneInfo.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/WindowsThreadPool.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/WaitHandle.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/TimerQueue.WindowsThreadPool.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/ThreadPoolBoundHandle.WindowsThreadPool.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/Thread.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/Semaphore.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/RegisteredWaitHandle.WindowsThreadPool.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/PortableThreadPool.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/PortableThreadPool.IO.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/Mutex.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/LowLevelFutex.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/EventWaitHandle.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Security/SecureString.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/MemoryFailPoint.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/RuntimeInformation.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/PosixSignalRegistration.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/NativeMemory.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/NativeLibrary.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/NativeLibrary.csScoped CA1416 suppression around TARGET_WINDOWS interop call
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/Marshal.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/Marshal.csScoped CA1416 suppression around TARGET_WINDOWS COM interop
src/libraries/System.Private.CoreLib/src/System/IO/Strategies/FileStreamHelpers.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/IO/RandomAccess.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/IO/PathHelper.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/IO/Path.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/IO/FileSystemInfo.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/IO/FileSystem.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/IO/Enumeration/FileSystemEnumerator.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/IO/Enumeration/FileSystemEntry.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/IO/DriveInfoInternal.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/IO/Directory.Windows.csFile-level CA1416 suppression for Windows implementation called by cross-platform partial
src/libraries/System.Private.CoreLib/src/System/Guid.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/TextInfo.Nls.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/Normalization.Nls.csFile-level CA1416 suppression for Windows-only NLS interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/IdnMapping.Nls.csFile-level CA1416 suppression for Windows-only NLS interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/CultureInfo.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/CultureData.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/CultureData.Nls.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/CompareInfo.Nls.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/CalendarData.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/CalendarData.Nls.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Environment.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Environment.Variables.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Diagnostics/Tracing/RuntimeEventSourceHelper.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Diagnostics/Stopwatch.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Diagnostics/DebugProvider.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/DateTime.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/AppDomain.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/Microsoft/Win32/SafeHandles/SafeThreadPoolIOHandle.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/Microsoft/Win32/SafeHandles/SafeRegistryHandle.csFile-level CA1416 suppression for Windows-only registry interop usage
src/libraries/System.Private.CoreLib/src/Internal/Win32/RegistryKey.csFile-level CA1416 suppression for Windows-only registry interop usage
src/libraries/System.Private.CoreLib/src/Internal/Console.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Net.NameResolution/src/System/Net/NameResolutionPal.Windows.csAdd SupportedOSPlatform to UnmanagedCallersOnly callback
src/libraries/System.Data.OleDb/src/UnsafeNativeMethods.COMWrappers.csAdd SupportedOSPlatform to Windows-only LibraryImport
src/libraries/Common/src/System/Threading/AsyncOverSyncWithIoCancellation.csAdd SupportedOSPlatform to Windows-only helper type
src/libraries/Common/src/System/IO/FileSystem.DirectoryCreation.Windows.csFile-level CA1416 suppression for Windows implementation invoked by cross-platform partial
src/libraries/Common/src/System/IO/FileSystem.Attributes.Windows.csFile-level CA1416 suppression for Windows implementation invoked by cross-platform partial
src/libraries/Common/src/Microsoft/Win32/SafeHandles/SafeTokenHandle.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/Common/src/Microsoft/Win32/SafeHandles/SafeThreadHandle.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/Common/src/Interop/Windows/WtsApi32/Interop.WTSUnRegisterSessionNotification.csMark WtsApi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/WtsApi32/Interop.WTSRegisterSessionNotification.csMark WtsApi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/WtsApi32/Interop.Constants.csMark WtsApi32 constants as Windows-only
src/libraries/Common/src/Interop/Windows/Wldap32/Interop.Ldap.csMark Wldap32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Wldap32/Interop.Ber.csMark Wldap32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Wkscli/Interop.NetWkstaGetInfo.csMark Wkscli interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.WSARecv.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.WSAConnect.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.shutdown.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.sendto.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.send.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.recvfrom.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.recv.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.listen.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.getsockname.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.getpeername.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.gethostname.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.closesocket.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.bind.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.accept.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutWrite.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutRestart.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutReset.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutPrepareHeader.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutPause.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutOpen.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutGetNumDevs.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutGetDevCaps.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutClose.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.PlaySound.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.MMSYSERR.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.mmioRead.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.mmioOpen.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.mmioDescend.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.mmioClose.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.mmioAscend.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.MMCKINFO.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinHttp/Interop.winhttp.csMark WinHTTP interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinHttp/Interop.winhttp_types.csMark WinHTTP types/constants as Windows-only
src/libraries/Common/src/Interop/Windows/WinHttp/Interop.SafeWinHttpHandle.csMark WinHTTP safe handle as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketSend.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketReceive.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketGetAction.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketEndServerHandshake.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketDeleteHandle.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketCreateServerHandle.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketCreateClientHandle.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketCompleteAction.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketBeginServerHandshake.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketBeginClientHandshake.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketAbortHandle.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.Structs.csMark Windows WebSocket structs as Windows-only
src/libraries/Common/src/Interop/Windows/Version/Interop.VSFixedFileInfo.csMark Version interop structs as Windows-only
src/libraries/Common/src/Interop/Windows/Version/Interop.VerQueryValue.csMark Version interop as Windows-only
src/libraries/Common/src/Interop/Windows/Version/Interop.GetFileVersionInfoSizeEx.csMark Version interop as Windows-only
src/libraries/Common/src/Interop/Windows/Version/Interop.GetFileVersionInfoEx.csMark Version interop as Windows-only
src/libraries/Common/src/Interop/Windows/Version/Interop.FileVersionInfoType.csMark Version interop as Windows-only
src/libraries/Common/src/Interop/Windows/Version/Interop.FileVersionInfo.csMark Version interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.WndProc.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.WNDCLASS.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.Win32SystemColors.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.WaitForInputIdle.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.USEROBJECTFLAGS.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.UnregisterClass.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.TranslateMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SystemParametersInfo.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SetWindowLongPtr.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SetWindowLong.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SetTimer.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SetClassLongPtr.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SetClassLong.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SendMessageTimeout.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SendMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.RegisterWindowMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.RegisterClass.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.PostQuitMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.PostMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.MsgWaitForMultipleObjectsEx.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.MSG.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.MessageBeep.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.LoadString.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.KillTimer.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.IsWindowVisible.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.IsWindow.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.HIGHCONTRASTW.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetWindowThreadProcessId.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetWindowTextW.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetWindowTextLengthW.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetWindowLong.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetWindow.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetUserObjectInformation.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetSysColor.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetProcessWindowStation.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetKeyState.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetClassInfo.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.FindWindow.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.EnumWindows.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.DispatchMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.DestroyWindow.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.DefWindowProc.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.CreateWindowEx.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.Constants.csMark User32 constants as Windows-only
src/libraries/Common/src/Interop/Windows/Ucrtbase/Interop.MemAlloc.csMark ucrtbase interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/NegotiationInfoClass.csMark SspiCli helper as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.TokenSource.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.SSPI.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.SecurityLogonType.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.QuotaLimits.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.LsaLookupAuthenticationPackage.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.LsaLogonUser.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.LsaGetLogonSessionData.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.LsaFreeReturnBuffer.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.LsaDeregisterLogonProcess.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.LsaConnectUntrusted.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.KerbS4uLogin.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.KerbLogonSubmitType.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.AuthenticationPackageNames.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/Shell32/Interop.SHGetKnownFolderPath.csMark Shell32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Shell32/Interop.ShellExecuteExW.csMark Shell32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Secur32/Interop.LsaLogonProcessSafeHandle.csMark Secur32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Secur32/Interop.LsaFreeReturnBuffer.csMark Secur32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Secur32/Interop.LsaDeregisterLogonProcess.csMark Secur32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Secur32/Interop.LsaConnectUntrusted.csMark Secur32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Secur32/Interop.LsaCallAuthenticationPackage.csMark Secur32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Secur32/Interop.GetUserNameExW.csMark Secur32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/PerfCounter/Interop.PerformanceData.csMark PerfCounter interop as Windows-only
src/libraries/Common/src/Interop/Windows/Pdh/Interop.PdhFormatFromRawValue.csMark PDH interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.VariantClear.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.VariantChangeTypeEx.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.SysFreeString.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.SysAllocStringLen.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.SysAllocStringByteLen.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.SetErrorInfo.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.GetErrorInfo.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.PropVariantClear.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoUninitialize.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoTaskMemAlloc.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoInitializeEx.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoGetStandardMarshal.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoGetObjectContext.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoGetContextToken.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoGetApartmentType.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoCreateGuid.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CLSIDFromProgID.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.SYSTEM_PROCESS_INFORMATION.csMark NtDll interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.SYSTEM_LEAP_SECOND_INFORMATION.csMark NtDll interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.RtlNtStatusToDosError.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.RtlInitUnicodeString.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.RtlGetVersion.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.PROCESS_BASIC_INFORMATION.csMark NtDll interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.NtQuerySystemInformation.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.NtQueryInformationProcess.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.NtQueryInformationFile.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.NtQueryDirectoryFile.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.NtCreateFile.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.IO_STATUS_BLOCK.csMark NtDll interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.FILE_INFORMATION_CLASS.csMark NtDll interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.FILE_FULL_DIR_INFORMATION.csMark NtDll interop types as Windows-only
src/libraries/Common/src/Interop/Windows/Normaliz/Interop.Normalization.csMark Normaliz interop as Windows-only
src/libraries/Common/src/Interop/Windows/Normaliz/Interop.Idna.csMark Normaliz interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netutils/Interop.NetApiBufferFree.csMark Netutils interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.NetApiBufferFree.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.I_NetLogonControl2.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsRoleGetPrimaryDomainInformation.csMark Netapi32 types as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsRoleFreeMemory.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsGetSiteName.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsGetDcOpen.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsGetDcNext.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsGetDcName.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsGetDcClose.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsEnumerateDomainTrustsW.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DS_DOMAINTRUST_FLAG.csMark Netapi32 types as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DS_DOMAIN_TRUSTS.csMark Netapi32 types as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.UiPolicy.csMark NCrypt interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.SignVerify.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.Properties.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.NCryptOpenStorageProvider.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.NCryptFreeObject.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.NCryptDeriveSecretAgreement.csMark NCrypt interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.NCryptDeriveKeyMaterial.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.NCryptDecapsulateEncapsulate.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.NCryptBuffer.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.Keys.csMark NCrypt constants as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.ErrorCode.csMark NCrypt types as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.EncryptDecrypt.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.AsymmetricPaddingMode.csMark NCrypt types as Windows-only
src/libraries/Common/src/Interop/Windows/Mincore/Interop.WaitOnAddress.csMark Mincore interop as Windows-only
src/libraries/Common/src/Interop/Windows/Logoncli/Interop.DsGetDcName.csMark Logoncli interop as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.WriteFile_IntPtr.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.WaitCommEvent.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.VirtualQuery.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.Sleep.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.SetupComm.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.SetLastError.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.SetCommState.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.SetCommMask.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.SetCommBreak.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.ResumeThread.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.ReadFile_IntPtr.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.QueryPerformanceFrequency.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.QueryPerformanceCounter.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.PurgeComm.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GlobalMemoryStatusEx.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetUserDefaultLCID.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetTickCount64.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetThreadPriority.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetSystemTime.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetSystemInfo.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetStdHandle.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetProcessId.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetPriorityClass.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetNativeSystemInfo.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetLogicalDrives.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetLastError.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetEnvironmentStrings.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCurrentThread.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCurrentProcessorNumberEx.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCurrentProcessId.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCurrentProcess.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCPInfo.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetConsoleTitle.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetConsoleOutputCP.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetConsoleCP.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCommState.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCommProperties.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCommandLine.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.FreeLibrary.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.FreeEnvironmentStrings.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.FindClose.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.ExitProcess.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.EscapeCommFunction.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.CopyFile.csMark Kernel32 helper as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.CloseHandle.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.ClearCommBreak.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.Beep.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.NetworkInformation.csMark IpHlpApi interop as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.IP_ADDR_STRING.csMark IpHlpApi structs as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.ICMP.csMark IpHlpApi types/constants as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.GetNetworkParams.csMark IpHlpApi P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.FIXED_INFO.csMark IpHlpApi structs as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.ErrorCodes.csMark IpHlpApi constants as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.ConvertInterfaceNameToLuid.csMark IpHlpApi P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.ConvertInterfaceLuidToName.csMark IpHlpApi P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.ConvertInterfaceLuidToIndex.csMark IpHlpApi P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.ConvertInterfaceIndexToLuid.csMark IpHlpApi P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/HttpApi/Interop.HttpApi.csMark HttpApi interop as Windows-only
src/libraries/Common/src/Interop/Windows/HttpApi/Interop.ErrorCodes.csMark HttpApi constants as Windows-only
src/libraries/Common/src/Interop/Windows/Dsrole/Interop.DsRoleGetPrimaryDomainInformation.csMark Dsrole types as Windows-only
src/libraries/Common/src/Interop/Windows/Dsrole/Interop.DsRoleFreeMemory.csMark Dsrole P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Dnsapi/Interop.DnsTypes.csMark Dnsapi types as Windows-only
src/libraries/Common/src/Interop/Windows/Dnsapi/Interop.DnsApi.csMark Dnsapi interop as Windows-only
src/libraries/Common/src/Interop/Windows/CryptUI/Interop.CryptUIDlgCertificate.csMark CryptUI interop as Windows-only
src/libraries/Common/src/Interop/Windows/Crypt32/Interop.CryptEncodeObject.csMark Crypt32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Crypt32/Interop.CryptDecodeObject.csMark Crypt32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Credui/Interop.CredUIParseUserName.csMark Credui interop as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptVerifySignature.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptSignHash.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptSecretAgreement.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptGenRandom.GetRandomBytes.csFile-level CA1416 suppression for cross-platform RNG entrypoint
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptFinalizeKey.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptDuplicateHash.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptDestroySecret.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptDestroyKey.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptDestroyHash.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Authz/Interop.AuthzInitializeResourceManager.csMark Authz interop as Windows-only
src/libraries/Common/src/Interop/Windows/Authz/Interop.AuthzInitializeContextFromSid.csMark Authz interop as Windows-only
src/libraries/Common/src/Interop/Windows/Authz/Interop.AuthzGetInformationFromContext.csMark Authz interop as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.RegFlushKey.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.RegCloseKey.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.GetSecurityDescriptorLength.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.GetLengthSid.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.EventWriteString.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.EventUnregister.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.EventSetInformation.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.EventRegister.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.CryptEncrypt.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.CryptDecrypt.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.CryptCreateHash.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Activeds/Interop.FreeADsMem.csMark Activeds interop as Windows-only
src/libraries/Common/src/Interop/Windows/Activeds/Interop.ADsSetLastError.csMark Activeds interop as Windows-only
src/libraries/Common/src/Interop/Windows/Activeds/Interop.ADsOpenObject.csMark Activeds interop as Windows-only
src/libraries/Common/src/Interop/Windows/Activeds/Interop.ADsGetLastError.csMark Activeds interop as Windows-only
src/libraries/Common/src/Interop/Windows/Activeds/Interop.ADsEncodeBinaryData.csMark Activeds interop as Windows-only
src/coreclr/System.Private.CoreLib/src/Microsoft/Win32/OAVariantLib.csFile-level CA1416 suppression for Windows-only OLE Automation interop
src/coreclr/nativeaot/System.Private.CoreLib/src/System/Threading/Thread.NativeAot.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/coreclr/nativeaot/System.Private.CoreLib/src/System/Runtime/InteropServices/PInvokeMarshal.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/coreclr/nativeaot/System.Private.CoreLib/src/System/Environment.NativeAot.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/coreclr/nativeaot/System.Private.CoreLib/src/Internal/Runtime/FrozenObjectHeapManager.Windows.csFile-level CA1416 suppression for Windows-only interop usage
Comment threadsrc/libraries/Common/src/System/Threading/AsyncOverSyncWithIoCancellation.cs
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🔵 Needs a closer look
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Comment thread...eclr/nativeaot/System.Private.CoreLib/src/Internal/Runtime/CompilerHelpers/InteropHelpers.cs
#if TARGET_WINDOWS
 private static unsafe IntPtr GetProcAddressWithMangling(IntPtr hModule, byte* methodName, MethodFixupCell* pCell)
 {
#pragma warning disable CA1416 // Only reached on Windows via TARGET_WINDOWS.
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Why do we need suppressions like this? Is this a bug in the analyzer? Can you link the bug so we can delete these once the bug is fixed?
@pavelsavarapavelsavaraAug 31, 2026

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The platform neutral CoreLib is compiled with MSBuild TargetOS set to the same platform as the machine doing the compilation.

Therefore TargetsWindows is true.

Therefore #if TARGET_WINDOWS is true, not false.
As a consequence, platform neutral CoreLib has those calls included and we get the CA1416.
Any idea what to do with that would be appreciated.
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What is platform neutral corelib? Where/how do we build it and what's the purpose?
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sorry, "neutral corelib" is wrong angle. And maybe I'm confused about TargetsWindows values.
It's those Windows P/Invokes sit in the unconditionally-compiled part of CoreLib, so they land in every CoreLib flavor including browser.
The NLS/Normaliz declarations aren't under TargetsWindows at all — they're unconditional.
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This lets the wasm CoreCLR P/Invoke scan (PInvokeCollector) skip these declarations on browser/wasi — removing WASM0066 noise at the source — and makes them visible to CA1416 platform-compatibility analysis.
How are we ending up with these DllImports under WASM in the first place? I would have expect us not to compile these in the first place under WASM. And why Windows specifically and not macOS/Linux?
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How are we ending up with these DllImports under WASM in the first place?
Platform neutral CoreLib contains windows calls.
And why Windows specifically and not macOS/Linux?
I think we ship the runtime pack from windows machine.
This PR focuses on Windows only and I think we need to annotate OSX and Unix too (for consistency).
I just wanted to do that in a separate PRs.
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Annotate all DllImport/LibraryImport/UnmanagedCallersOnly with [SupportedOSPlatform]


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Annotate Windows interop declarations with [SupportedOSPlatform("windows")] by Copilot · Pull Request #132778 · dotnet/runtime · GitHub
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Annotate Windows interop declarations with [SupportedOSPlatform("windows")] - #132778
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Annotates the platform-specific DllImport / LibraryImport / UnmanagedCallersOnly declarations under src/libraries/Common/src/Interop/Windows/** with [SupportedOSPlatform("windows")], and annotates or gates their callers accordingly.
This lets the wasm CoreCLR P/Invoke scan (PInvokeCollector) skip these declarations on browser/wasi — removing WASM0066 noise at the source — and makes them visible to CA1416 platform-compatibility analysis.
Contributes to #132776
Scope
  • Windows interop only — all 38 modules under src/libraries/Common/src/Interop/Windows/. Unix/macOS interop is not part of this change.
  • The attribute is guarded with #if NET so the shared files still compile for netstandard/netfx consumers (e.g. TestUtilities on net481), where SupportedOSPlatformAttribute does not exist.
Approach
  • Declarations. Every Windows P/Invoke / UnmanagedCallersOnly declaration is annotated. Type-level (coarse) annotation is used on the Interop. partial class where safe; per-method annotation is used where a module's const/struct/enum members are consumed by cross-platform code — e.g. the public enums in System.Net.Primitives (SslProtocols, SocketError, …) whose values derive from Interop.SChannel.* / Interop.Winsock.* / Interop.Crypt32.* — so those members stay platform-neutral. Kernel32, Advapi32, Crypt32, BCrypt, and WinSock are per-method; the remaining modules are type-level.
  • Managed wrapper helpers. A helper that calls an annotated P/Invoke is itself annotated [SupportedOSPlatform("windows")] whenever all of its callers are Windows-only, rather than suppressing the warning with a pragma. A #pragma warning disable CA1416 is used only where the requirement cannot be expressed as an annotation: (1) Windows-only-compiled implementation files (*.Windows.cs) whose members are invoked by their cross-platform partial siblings, and (2) the few helpers whose managed entry point is genuinely cross-platform — Interop.GetRandomBytes (the platform-abstracted RNG) and Kernel32.GetMessage (reached through the portable Win32Marshal error path).
  • Callers. Cross-platform files in System.Private.CoreLib reach Windows-only interop only through compile-time gates (#if TARGET_WINDOWS, #if FEATURE_COMINTEROP, *.Windows.cs, *.Nls.cs) that CA1416 cannot observe; those files carry scoped or file-level suppressions where a Windows annotation would incorrectly propagate to portable code.
Validation
  • System.Private.CoreLib builds clean with no CA1416 diagnostics on Windows (CoreCLR and NativeAOT) and on browser/wasm.
  • Cross-platform consumers — System.Net.*, System.Security.Cryptography, System.Diagnostics.*, System.IO.*, System.Console, System.DirectoryServices.Protocols, and others — build clean across all target frameworks, including browser, wasi, unix, linux, osx, and android.
  • netstandard/net481 consumers of the shared interop build clean.
Note
This pull request was authored with GitHub Copilot.
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Annotate all DllImport/LibraryImport/UnmanagedCallersOnly with [SupportedOSPlatform]
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[WIP] Annotate DllImport/LibraryImport/UnmanagedCallersOnly with [SupportedOSPlatform]Research: scope [SupportedOSPlatform] annotation of interop declarationsAug 26, 2026
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Annotate NtDll interop with [SupportedOSPlatform("windows")]; guard C…
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Annotate User32/Crypt32 interop; use fully-qualified [SupportedOSPlat…
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…form] across modules
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Convert Crypt32 to method-level [SupportedOSPlatform] (consts consume…
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…d cross-platform)
@pavelsavara
Annotate no-coupling Windows interop modules with [SupportedOSPlatfor…
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…m] (coarse; method-level for WinSock)
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Annotate Ole32 interop (coarse) + guard cross-platform CoreLib callers
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Annotate OleAut32 interop (coarse) + guard cross-platform CoreLib cal…
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Annotate Normaliz interop (coarse) + guard Windows NLS CoreLib callers
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Annotate BCrypt interop method-level (consts consumed cross-platform)…
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Annotate Advapi32 interop method-level (structs/consts consumed cross…
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…-platform) + guard CoreLib callers
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Annotate Kernel32 interop method-level (structs/consts consumed cross…
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Annotate IsGetConsoleModeCallSuccessful helper [SupportedOSPlatform] …
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Research: scope [SupportedOSPlatform] annotation of interop declarationsAnnotate Windows interop declarations with [SupportedOSPlatform("windows")]Aug 27, 2026
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Pull request overview
This PR broadly annotates Windows-specific interop declarations with [SupportedOSPlatform("windows")] and updates/gates callers (primarily via CA1416 suppressions in Windows-only or Windows-gated code) so platform-compatibility analysis and wasm P/Invoke scanning can correctly skip Windows-only entrypoints.
Changes:
  • Add [SupportedOSPlatform("windows")] annotations across Windows interop declarations under src/libraries/Common/src/Interop/Windows/** (and select other Windows-only declarations).
  • Add #pragma warning disable CA1416 (and a few scoped disable/restore blocks) in Windows-only or Windows-gated call sites across CoreLib/Common/NativeAOT.
  • Add/adjust a few Windows-only managed helpers / callbacks to carry platform annotations.
Reviewed changes
Copilot reviewed 300 out of 758 changed files in this pull request and generated 1 comment.
Show a summary per file
FileDescription
src/libraries/System.Private.CoreLib/src/System/TimeZoneInfo.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/WindowsThreadPool.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/WaitHandle.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/TimerQueue.WindowsThreadPool.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/ThreadPoolBoundHandle.WindowsThreadPool.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/Thread.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/Semaphore.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/RegisteredWaitHandle.WindowsThreadPool.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/PortableThreadPool.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/PortableThreadPool.IO.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/Mutex.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/LowLevelFutex.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/EventWaitHandle.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Security/SecureString.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/MemoryFailPoint.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/RuntimeInformation.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/PosixSignalRegistration.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/NativeMemory.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/NativeLibrary.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/NativeLibrary.csScoped CA1416 suppression around TARGET_WINDOWS interop call
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/Marshal.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/Marshal.csScoped CA1416 suppression around TARGET_WINDOWS COM interop
src/libraries/System.Private.CoreLib/src/System/IO/Strategies/FileStreamHelpers.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/IO/RandomAccess.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/IO/PathHelper.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/IO/Path.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/IO/FileSystemInfo.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/IO/FileSystem.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/IO/Enumeration/FileSystemEnumerator.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/IO/Enumeration/FileSystemEntry.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/IO/DriveInfoInternal.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/IO/Directory.Windows.csFile-level CA1416 suppression for Windows implementation called by cross-platform partial
src/libraries/System.Private.CoreLib/src/System/Guid.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/TextInfo.Nls.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/Normalization.Nls.csFile-level CA1416 suppression for Windows-only NLS interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/IdnMapping.Nls.csFile-level CA1416 suppression for Windows-only NLS interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/CultureInfo.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/CultureData.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/CultureData.Nls.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/CompareInfo.Nls.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/CalendarData.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/CalendarData.Nls.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Environment.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Environment.Variables.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Diagnostics/Tracing/RuntimeEventSourceHelper.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Diagnostics/Stopwatch.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Diagnostics/DebugProvider.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/DateTime.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/AppDomain.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/Microsoft/Win32/SafeHandles/SafeThreadPoolIOHandle.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/Microsoft/Win32/SafeHandles/SafeRegistryHandle.csFile-level CA1416 suppression for Windows-only registry interop usage
src/libraries/System.Private.CoreLib/src/Internal/Win32/RegistryKey.csFile-level CA1416 suppression for Windows-only registry interop usage
src/libraries/System.Private.CoreLib/src/Internal/Console.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Net.NameResolution/src/System/Net/NameResolutionPal.Windows.csAdd SupportedOSPlatform to UnmanagedCallersOnly callback
src/libraries/System.Data.OleDb/src/UnsafeNativeMethods.COMWrappers.csAdd SupportedOSPlatform to Windows-only LibraryImport
src/libraries/Common/src/System/Threading/AsyncOverSyncWithIoCancellation.csAdd SupportedOSPlatform to Windows-only helper type
src/libraries/Common/src/System/IO/FileSystem.DirectoryCreation.Windows.csFile-level CA1416 suppression for Windows implementation invoked by cross-platform partial
src/libraries/Common/src/System/IO/FileSystem.Attributes.Windows.csFile-level CA1416 suppression for Windows implementation invoked by cross-platform partial
src/libraries/Common/src/Microsoft/Win32/SafeHandles/SafeTokenHandle.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/Common/src/Microsoft/Win32/SafeHandles/SafeThreadHandle.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/Common/src/Interop/Windows/WtsApi32/Interop.WTSUnRegisterSessionNotification.csMark WtsApi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/WtsApi32/Interop.WTSRegisterSessionNotification.csMark WtsApi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/WtsApi32/Interop.Constants.csMark WtsApi32 constants as Windows-only
src/libraries/Common/src/Interop/Windows/Wldap32/Interop.Ldap.csMark Wldap32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Wldap32/Interop.Ber.csMark Wldap32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Wkscli/Interop.NetWkstaGetInfo.csMark Wkscli interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.WSARecv.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.WSAConnect.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.shutdown.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.sendto.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.send.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.recvfrom.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.recv.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.listen.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.getsockname.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.getpeername.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.gethostname.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.closesocket.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.bind.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.accept.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutWrite.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutRestart.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutReset.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutPrepareHeader.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutPause.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutOpen.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutGetNumDevs.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutGetDevCaps.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutClose.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.PlaySound.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.MMSYSERR.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.mmioRead.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.mmioOpen.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.mmioDescend.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.mmioClose.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.mmioAscend.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.MMCKINFO.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinHttp/Interop.winhttp.csMark WinHTTP interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinHttp/Interop.winhttp_types.csMark WinHTTP types/constants as Windows-only
src/libraries/Common/src/Interop/Windows/WinHttp/Interop.SafeWinHttpHandle.csMark WinHTTP safe handle as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketSend.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketReceive.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketGetAction.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketEndServerHandshake.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketDeleteHandle.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketCreateServerHandle.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketCreateClientHandle.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketCompleteAction.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketBeginServerHandshake.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketBeginClientHandshake.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketAbortHandle.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.Structs.csMark Windows WebSocket structs as Windows-only
src/libraries/Common/src/Interop/Windows/Version/Interop.VSFixedFileInfo.csMark Version interop structs as Windows-only
src/libraries/Common/src/Interop/Windows/Version/Interop.VerQueryValue.csMark Version interop as Windows-only
src/libraries/Common/src/Interop/Windows/Version/Interop.GetFileVersionInfoSizeEx.csMark Version interop as Windows-only
src/libraries/Common/src/Interop/Windows/Version/Interop.GetFileVersionInfoEx.csMark Version interop as Windows-only
src/libraries/Common/src/Interop/Windows/Version/Interop.FileVersionInfoType.csMark Version interop as Windows-only
src/libraries/Common/src/Interop/Windows/Version/Interop.FileVersionInfo.csMark Version interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.WndProc.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.WNDCLASS.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.Win32SystemColors.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.WaitForInputIdle.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.USEROBJECTFLAGS.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.UnregisterClass.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.TranslateMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SystemParametersInfo.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SetWindowLongPtr.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SetWindowLong.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SetTimer.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SetClassLongPtr.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SetClassLong.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SendMessageTimeout.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SendMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.RegisterWindowMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.RegisterClass.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.PostQuitMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.PostMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.MsgWaitForMultipleObjectsEx.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.MSG.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.MessageBeep.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.LoadString.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.KillTimer.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.IsWindowVisible.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.IsWindow.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.HIGHCONTRASTW.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetWindowThreadProcessId.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetWindowTextW.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetWindowTextLengthW.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetWindowLong.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetWindow.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetUserObjectInformation.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetSysColor.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetProcessWindowStation.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetKeyState.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetClassInfo.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.FindWindow.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.EnumWindows.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.DispatchMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.DestroyWindow.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.DefWindowProc.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.CreateWindowEx.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.Constants.csMark User32 constants as Windows-only
src/libraries/Common/src/Interop/Windows/Ucrtbase/Interop.MemAlloc.csMark ucrtbase interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/NegotiationInfoClass.csMark SspiCli helper as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.TokenSource.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.SSPI.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.SecurityLogonType.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.QuotaLimits.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.LsaLookupAuthenticationPackage.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.LsaLogonUser.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.LsaGetLogonSessionData.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.LsaFreeReturnBuffer.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.LsaDeregisterLogonProcess.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.LsaConnectUntrusted.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.KerbS4uLogin.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.KerbLogonSubmitType.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.AuthenticationPackageNames.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/Shell32/Interop.SHGetKnownFolderPath.csMark Shell32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Shell32/Interop.ShellExecuteExW.csMark Shell32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Secur32/Interop.LsaLogonProcessSafeHandle.csMark Secur32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Secur32/Interop.LsaFreeReturnBuffer.csMark Secur32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Secur32/Interop.LsaDeregisterLogonProcess.csMark Secur32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Secur32/Interop.LsaConnectUntrusted.csMark Secur32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Secur32/Interop.LsaCallAuthenticationPackage.csMark Secur32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Secur32/Interop.GetUserNameExW.csMark Secur32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/PerfCounter/Interop.PerformanceData.csMark PerfCounter interop as Windows-only
src/libraries/Common/src/Interop/Windows/Pdh/Interop.PdhFormatFromRawValue.csMark PDH interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.VariantClear.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.VariantChangeTypeEx.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.SysFreeString.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.SysAllocStringLen.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.SysAllocStringByteLen.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.SetErrorInfo.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.GetErrorInfo.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.PropVariantClear.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoUninitialize.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoTaskMemAlloc.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoInitializeEx.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoGetStandardMarshal.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoGetObjectContext.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoGetContextToken.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoGetApartmentType.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoCreateGuid.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CLSIDFromProgID.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.SYSTEM_PROCESS_INFORMATION.csMark NtDll interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.SYSTEM_LEAP_SECOND_INFORMATION.csMark NtDll interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.RtlNtStatusToDosError.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.RtlInitUnicodeString.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.RtlGetVersion.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.PROCESS_BASIC_INFORMATION.csMark NtDll interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.NtQuerySystemInformation.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.NtQueryInformationProcess.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.NtQueryInformationFile.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.NtQueryDirectoryFile.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.NtCreateFile.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.IO_STATUS_BLOCK.csMark NtDll interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.FILE_INFORMATION_CLASS.csMark NtDll interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.FILE_FULL_DIR_INFORMATION.csMark NtDll interop types as Windows-only
src/libraries/Common/src/Interop/Windows/Normaliz/Interop.Normalization.csMark Normaliz interop as Windows-only
src/libraries/Common/src/Interop/Windows/Normaliz/Interop.Idna.csMark Normaliz interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netutils/Interop.NetApiBufferFree.csMark Netutils interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.NetApiBufferFree.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.I_NetLogonControl2.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsRoleGetPrimaryDomainInformation.csMark Netapi32 types as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsRoleFreeMemory.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsGetSiteName.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsGetDcOpen.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsGetDcNext.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsGetDcName.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsGetDcClose.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsEnumerateDomainTrustsW.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DS_DOMAINTRUST_FLAG.csMark Netapi32 types as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DS_DOMAIN_TRUSTS.csMark Netapi32 types as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.UiPolicy.csMark NCrypt interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.SignVerify.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.Properties.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.NCryptOpenStorageProvider.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.NCryptFreeObject.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.NCryptDeriveSecretAgreement.csMark NCrypt interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.NCryptDeriveKeyMaterial.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.NCryptDecapsulateEncapsulate.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.NCryptBuffer.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.Keys.csMark NCrypt constants as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.ErrorCode.csMark NCrypt types as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.EncryptDecrypt.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.AsymmetricPaddingMode.csMark NCrypt types as Windows-only
src/libraries/Common/src/Interop/Windows/Mincore/Interop.WaitOnAddress.csMark Mincore interop as Windows-only
src/libraries/Common/src/Interop/Windows/Logoncli/Interop.DsGetDcName.csMark Logoncli interop as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.WriteFile_IntPtr.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.WaitCommEvent.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.VirtualQuery.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.Sleep.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.SetupComm.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.SetLastError.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.SetCommState.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.SetCommMask.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.SetCommBreak.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.ResumeThread.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.ReadFile_IntPtr.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.QueryPerformanceFrequency.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.QueryPerformanceCounter.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.PurgeComm.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GlobalMemoryStatusEx.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetUserDefaultLCID.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetTickCount64.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetThreadPriority.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetSystemTime.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetSystemInfo.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetStdHandle.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetProcessId.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetPriorityClass.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetNativeSystemInfo.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetLogicalDrives.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetLastError.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetEnvironmentStrings.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCurrentThread.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCurrentProcessorNumberEx.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCurrentProcessId.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCurrentProcess.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCPInfo.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetConsoleTitle.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetConsoleOutputCP.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetConsoleCP.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCommState.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCommProperties.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCommandLine.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.FreeLibrary.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.FreeEnvironmentStrings.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.FindClose.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.ExitProcess.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.EscapeCommFunction.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.CopyFile.csMark Kernel32 helper as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.CloseHandle.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.ClearCommBreak.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.Beep.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.NetworkInformation.csMark IpHlpApi interop as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.IP_ADDR_STRING.csMark IpHlpApi structs as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.ICMP.csMark IpHlpApi types/constants as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.GetNetworkParams.csMark IpHlpApi P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.FIXED_INFO.csMark IpHlpApi structs as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.ErrorCodes.csMark IpHlpApi constants as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.ConvertInterfaceNameToLuid.csMark IpHlpApi P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.ConvertInterfaceLuidToName.csMark IpHlpApi P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.ConvertInterfaceLuidToIndex.csMark IpHlpApi P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.ConvertInterfaceIndexToLuid.csMark IpHlpApi P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/HttpApi/Interop.HttpApi.csMark HttpApi interop as Windows-only
src/libraries/Common/src/Interop/Windows/HttpApi/Interop.ErrorCodes.csMark HttpApi constants as Windows-only
src/libraries/Common/src/Interop/Windows/Dsrole/Interop.DsRoleGetPrimaryDomainInformation.csMark Dsrole types as Windows-only
src/libraries/Common/src/Interop/Windows/Dsrole/Interop.DsRoleFreeMemory.csMark Dsrole P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Dnsapi/Interop.DnsTypes.csMark Dnsapi types as Windows-only
src/libraries/Common/src/Interop/Windows/Dnsapi/Interop.DnsApi.csMark Dnsapi interop as Windows-only
src/libraries/Common/src/Interop/Windows/CryptUI/Interop.CryptUIDlgCertificate.csMark CryptUI interop as Windows-only
src/libraries/Common/src/Interop/Windows/Crypt32/Interop.CryptEncodeObject.csMark Crypt32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Crypt32/Interop.CryptDecodeObject.csMark Crypt32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Credui/Interop.CredUIParseUserName.csMark Credui interop as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptVerifySignature.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptSignHash.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptSecretAgreement.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptGenRandom.GetRandomBytes.csFile-level CA1416 suppression for cross-platform RNG entrypoint
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptFinalizeKey.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptDuplicateHash.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptDestroySecret.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptDestroyKey.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptDestroyHash.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Authz/Interop.AuthzInitializeResourceManager.csMark Authz interop as Windows-only
src/libraries/Common/src/Interop/Windows/Authz/Interop.AuthzInitializeContextFromSid.csMark Authz interop as Windows-only
src/libraries/Common/src/Interop/Windows/Authz/Interop.AuthzGetInformationFromContext.csMark Authz interop as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.RegFlushKey.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.RegCloseKey.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.GetSecurityDescriptorLength.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.GetLengthSid.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.EventWriteString.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.EventUnregister.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.EventSetInformation.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.EventRegister.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.CryptEncrypt.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.CryptDecrypt.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.CryptCreateHash.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Activeds/Interop.FreeADsMem.csMark Activeds interop as Windows-only
src/libraries/Common/src/Interop/Windows/Activeds/Interop.ADsSetLastError.csMark Activeds interop as Windows-only
src/libraries/Common/src/Interop/Windows/Activeds/Interop.ADsOpenObject.csMark Activeds interop as Windows-only
src/libraries/Common/src/Interop/Windows/Activeds/Interop.ADsGetLastError.csMark Activeds interop as Windows-only
src/libraries/Common/src/Interop/Windows/Activeds/Interop.ADsEncodeBinaryData.csMark Activeds interop as Windows-only
src/coreclr/System.Private.CoreLib/src/Microsoft/Win32/OAVariantLib.csFile-level CA1416 suppression for Windows-only OLE Automation interop
src/coreclr/nativeaot/System.Private.CoreLib/src/System/Threading/Thread.NativeAot.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/coreclr/nativeaot/System.Private.CoreLib/src/System/Runtime/InteropServices/PInvokeMarshal.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/coreclr/nativeaot/System.Private.CoreLib/src/System/Environment.NativeAot.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/coreclr/nativeaot/System.Private.CoreLib/src/Internal/Runtime/FrozenObjectHeapManager.Windows.csFile-level CA1416 suppression for Windows-only interop usage
Comment threadsrc/libraries/Common/src/System/Threading/AsyncOverSyncWithIoCancellation.cs
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🔵 Needs a closer look
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Comment thread...eclr/nativeaot/System.Private.CoreLib/src/Internal/Runtime/CompilerHelpers/InteropHelpers.cs
#if TARGET_WINDOWS
 private static unsafe IntPtr GetProcAddressWithMangling(IntPtr hModule, byte* methodName, MethodFixupCell* pCell)
 {
#pragma warning disable CA1416 // Only reached on Windows via TARGET_WINDOWS.
@MichalStrehovskyMichalStrehovskyAug 31, 2026

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Why do we need suppressions like this? Is this a bug in the analyzer? Can you link the bug so we can delete these once the bug is fixed?
@pavelsavarapavelsavaraAug 31, 2026

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The platform neutral CoreLib is compiled with MSBuild TargetOS set to the same platform as the machine doing the compilation.

Therefore TargetsWindows is true.

Therefore #if TARGET_WINDOWS is true, not false.
As a consequence, platform neutral CoreLib has those calls included and we get the CA1416.
Any idea what to do with that would be appreciated.
@MichalStrehovskyMichalStrehovskyAug 31, 2026

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What is platform neutral corelib? Where/how do we build it and what's the purpose?
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sorry, "neutral corelib" is wrong angle. And maybe I'm confused about TargetsWindows values.
It's those Windows P/Invokes sit in the unconditionally-compiled part of CoreLib, so they land in every CoreLib flavor including browser.
The NLS/Normaliz declarations aren't under TargetsWindows at all — they're unconditional.
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This lets the wasm CoreCLR P/Invoke scan (PInvokeCollector) skip these declarations on browser/wasi — removing WASM0066 noise at the source — and makes them visible to CA1416 platform-compatibility analysis.
How are we ending up with these DllImports under WASM in the first place? I would have expect us not to compile these in the first place under WASM. And why Windows specifically and not macOS/Linux?
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How are we ending up with these DllImports under WASM in the first place?
Platform neutral CoreLib contains windows calls.
And why Windows specifically and not macOS/Linux?
I think we ship the runtime pack from windows machine.
This PR focuses on Windows only and I think we need to annotate OSX and Unix too (for consistency).
I just wanted to do that in a separate PRs.
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Annotate all DllImport/LibraryImport/UnmanagedCallersOnly with [SupportedOSPlatform]


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Annotate Windows interop declarations with [SupportedOSPlatform("windows")] by Copilot · Pull Request #132778 · dotnet/runtime · GitHub
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Annotate Windows interop declarations with [SupportedOSPlatform("windows")] - #132778
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Annotate Windows interop declarations with [SupportedOSPlatform("windows")]#132778
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Annotates the platform-specific DllImport / LibraryImport / UnmanagedCallersOnly declarations under src/libraries/Common/src/Interop/Windows/** with [SupportedOSPlatform("windows")], and annotates or gates their callers accordingly.
This lets the wasm CoreCLR P/Invoke scan (PInvokeCollector) skip these declarations on browser/wasi — removing WASM0066 noise at the source — and makes them visible to CA1416 platform-compatibility analysis.
Contributes to #132776
Scope
  • Windows interop only — all 38 modules under src/libraries/Common/src/Interop/Windows/. Unix/macOS interop is not part of this change.
  • The attribute is guarded with #if NET so the shared files still compile for netstandard/netfx consumers (e.g. TestUtilities on net481), where SupportedOSPlatformAttribute does not exist.
Approach
  • Declarations. Every Windows P/Invoke / UnmanagedCallersOnly declaration is annotated. Type-level (coarse) annotation is used on the Interop. partial class where safe; per-method annotation is used where a module's const/struct/enum members are consumed by cross-platform code — e.g. the public enums in System.Net.Primitives (SslProtocols, SocketError, …) whose values derive from Interop.SChannel.* / Interop.Winsock.* / Interop.Crypt32.* — so those members stay platform-neutral. Kernel32, Advapi32, Crypt32, BCrypt, and WinSock are per-method; the remaining modules are type-level.
  • Managed wrapper helpers. A helper that calls an annotated P/Invoke is itself annotated [SupportedOSPlatform("windows")] whenever all of its callers are Windows-only, rather than suppressing the warning with a pragma. A #pragma warning disable CA1416 is used only where the requirement cannot be expressed as an annotation: (1) Windows-only-compiled implementation files (*.Windows.cs) whose members are invoked by their cross-platform partial siblings, and (2) the few helpers whose managed entry point is genuinely cross-platform — Interop.GetRandomBytes (the platform-abstracted RNG) and Kernel32.GetMessage (reached through the portable Win32Marshal error path).
  • Callers. Cross-platform files in System.Private.CoreLib reach Windows-only interop only through compile-time gates (#if TARGET_WINDOWS, #if FEATURE_COMINTEROP, *.Windows.cs, *.Nls.cs) that CA1416 cannot observe; those files carry scoped or file-level suppressions where a Windows annotation would incorrectly propagate to portable code.
Validation
  • System.Private.CoreLib builds clean with no CA1416 diagnostics on Windows (CoreCLR and NativeAOT) and on browser/wasm.
  • Cross-platform consumers — System.Net.*, System.Security.Cryptography, System.Diagnostics.*, System.IO.*, System.Console, System.DirectoryServices.Protocols, and others — build clean across all target frameworks, including browser, wasi, unix, linux, osx, and android.
  • netstandard/net481 consumers of the shared interop build clean.
Note
This pull request was authored with GitHub Copilot.
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Annotate all DllImport/LibraryImport/UnmanagedCallersOnly with [SupportedOSPlatform]
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[WIP] Annotate DllImport/LibraryImport/UnmanagedCallersOnly with [SupportedOSPlatform]Research: scope [SupportedOSPlatform] annotation of interop declarationsAug 26, 2026
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Annotate NtDll interop with [SupportedOSPlatform("windows")]; guard C…
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Annotate User32/Crypt32 interop; use fully-qualified [SupportedOSPlat…
7e42119
…form] across modules
@pavelsavara
Convert Crypt32 to method-level [SupportedOSPlatform] (consts consume…
6fa3ebe
…d cross-platform)
@pavelsavara
Annotate no-coupling Windows interop modules with [SupportedOSPlatfor…
e77d94e
…m] (coarse; method-level for WinSock)
@pavelsavara
Annotate Ole32 interop (coarse) + guard cross-platform CoreLib callers
e6647f7
@pavelsavara
Annotate OleAut32 interop (coarse) + guard cross-platform CoreLib cal…
8dec96a
…lers
@pavelsavara
Annotate Normaliz interop (coarse) + guard Windows NLS CoreLib callers
e0078f3
@pavelsavara
Annotate BCrypt interop method-level (consts consumed cross-platform)…
bd9a4f0
… + guard GetRandomBytes
@pavelsavara
Annotate Advapi32 interop method-level (structs/consts consumed cross…
1da3c23
…-platform) + guard CoreLib callers
@pavelsavara
Annotate Kernel32 interop method-level (structs/consts consumed cross…
e6b4939
…-platform) + guard CoreLib callers
@pavelsavara
Annotate IsGetConsoleModeCallSuccessful helper [SupportedOSPlatform] …
beb36ec
…(wraps windows-only GetConsoleMode)
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Research: scope [SupportedOSPlatform] annotation of interop declarationsAnnotate Windows interop declarations with [SupportedOSPlatform("windows")]Aug 27, 2026
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/azp run runtime-extra-platforms
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Pull request overview
This PR broadly annotates Windows-specific interop declarations with [SupportedOSPlatform("windows")] and updates/gates callers (primarily via CA1416 suppressions in Windows-only or Windows-gated code) so platform-compatibility analysis and wasm P/Invoke scanning can correctly skip Windows-only entrypoints.
Changes:
  • Add [SupportedOSPlatform("windows")] annotations across Windows interop declarations under src/libraries/Common/src/Interop/Windows/** (and select other Windows-only declarations).
  • Add #pragma warning disable CA1416 (and a few scoped disable/restore blocks) in Windows-only or Windows-gated call sites across CoreLib/Common/NativeAOT.
  • Add/adjust a few Windows-only managed helpers / callbacks to carry platform annotations.
Reviewed changes
Copilot reviewed 300 out of 758 changed files in this pull request and generated 1 comment.
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FileDescription
src/libraries/System.Private.CoreLib/src/System/TimeZoneInfo.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/WindowsThreadPool.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/WaitHandle.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/TimerQueue.WindowsThreadPool.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/ThreadPoolBoundHandle.WindowsThreadPool.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/Thread.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/Semaphore.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/RegisteredWaitHandle.WindowsThreadPool.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/PortableThreadPool.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/PortableThreadPool.IO.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/Mutex.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/LowLevelFutex.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/EventWaitHandle.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Security/SecureString.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/MemoryFailPoint.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/RuntimeInformation.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/PosixSignalRegistration.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/NativeMemory.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/NativeLibrary.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/NativeLibrary.csScoped CA1416 suppression around TARGET_WINDOWS interop call
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/Marshal.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/Marshal.csScoped CA1416 suppression around TARGET_WINDOWS COM interop
src/libraries/System.Private.CoreLib/src/System/IO/Strategies/FileStreamHelpers.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/IO/RandomAccess.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/IO/PathHelper.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/IO/Path.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/IO/FileSystemInfo.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/IO/FileSystem.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/IO/Enumeration/FileSystemEnumerator.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/IO/Enumeration/FileSystemEntry.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/IO/DriveInfoInternal.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/IO/Directory.Windows.csFile-level CA1416 suppression for Windows implementation called by cross-platform partial
src/libraries/System.Private.CoreLib/src/System/Guid.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/TextInfo.Nls.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/Normalization.Nls.csFile-level CA1416 suppression for Windows-only NLS interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/IdnMapping.Nls.csFile-level CA1416 suppression for Windows-only NLS interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/CultureInfo.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/CultureData.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/CultureData.Nls.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/CompareInfo.Nls.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/CalendarData.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/CalendarData.Nls.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Environment.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Environment.Variables.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Diagnostics/Tracing/RuntimeEventSourceHelper.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Diagnostics/Stopwatch.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Diagnostics/DebugProvider.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/DateTime.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/AppDomain.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/Microsoft/Win32/SafeHandles/SafeThreadPoolIOHandle.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/Microsoft/Win32/SafeHandles/SafeRegistryHandle.csFile-level CA1416 suppression for Windows-only registry interop usage
src/libraries/System.Private.CoreLib/src/Internal/Win32/RegistryKey.csFile-level CA1416 suppression for Windows-only registry interop usage
src/libraries/System.Private.CoreLib/src/Internal/Console.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Net.NameResolution/src/System/Net/NameResolutionPal.Windows.csAdd SupportedOSPlatform to UnmanagedCallersOnly callback
src/libraries/System.Data.OleDb/src/UnsafeNativeMethods.COMWrappers.csAdd SupportedOSPlatform to Windows-only LibraryImport
src/libraries/Common/src/System/Threading/AsyncOverSyncWithIoCancellation.csAdd SupportedOSPlatform to Windows-only helper type
src/libraries/Common/src/System/IO/FileSystem.DirectoryCreation.Windows.csFile-level CA1416 suppression for Windows implementation invoked by cross-platform partial
src/libraries/Common/src/System/IO/FileSystem.Attributes.Windows.csFile-level CA1416 suppression for Windows implementation invoked by cross-platform partial
src/libraries/Common/src/Microsoft/Win32/SafeHandles/SafeTokenHandle.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/Common/src/Microsoft/Win32/SafeHandles/SafeThreadHandle.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/Common/src/Interop/Windows/WtsApi32/Interop.WTSUnRegisterSessionNotification.csMark WtsApi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/WtsApi32/Interop.WTSRegisterSessionNotification.csMark WtsApi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/WtsApi32/Interop.Constants.csMark WtsApi32 constants as Windows-only
src/libraries/Common/src/Interop/Windows/Wldap32/Interop.Ldap.csMark Wldap32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Wldap32/Interop.Ber.csMark Wldap32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Wkscli/Interop.NetWkstaGetInfo.csMark Wkscli interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.WSARecv.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.WSAConnect.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.shutdown.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.sendto.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.send.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.recvfrom.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.recv.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.listen.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.getsockname.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.getpeername.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.gethostname.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.closesocket.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.bind.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.accept.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutWrite.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutRestart.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutReset.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutPrepareHeader.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutPause.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutOpen.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutGetNumDevs.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutGetDevCaps.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutClose.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.PlaySound.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.MMSYSERR.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.mmioRead.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.mmioOpen.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.mmioDescend.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.mmioClose.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.mmioAscend.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.MMCKINFO.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinHttp/Interop.winhttp.csMark WinHTTP interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinHttp/Interop.winhttp_types.csMark WinHTTP types/constants as Windows-only
src/libraries/Common/src/Interop/Windows/WinHttp/Interop.SafeWinHttpHandle.csMark WinHTTP safe handle as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketSend.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketReceive.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketGetAction.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketEndServerHandshake.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketDeleteHandle.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketCreateServerHandle.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketCreateClientHandle.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketCompleteAction.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketBeginServerHandshake.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketBeginClientHandshake.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketAbortHandle.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.Structs.csMark Windows WebSocket structs as Windows-only
src/libraries/Common/src/Interop/Windows/Version/Interop.VSFixedFileInfo.csMark Version interop structs as Windows-only
src/libraries/Common/src/Interop/Windows/Version/Interop.VerQueryValue.csMark Version interop as Windows-only
src/libraries/Common/src/Interop/Windows/Version/Interop.GetFileVersionInfoSizeEx.csMark Version interop as Windows-only
src/libraries/Common/src/Interop/Windows/Version/Interop.GetFileVersionInfoEx.csMark Version interop as Windows-only
src/libraries/Common/src/Interop/Windows/Version/Interop.FileVersionInfoType.csMark Version interop as Windows-only
src/libraries/Common/src/Interop/Windows/Version/Interop.FileVersionInfo.csMark Version interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.WndProc.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.WNDCLASS.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.Win32SystemColors.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.WaitForInputIdle.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.USEROBJECTFLAGS.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.UnregisterClass.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.TranslateMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SystemParametersInfo.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SetWindowLongPtr.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SetWindowLong.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SetTimer.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SetClassLongPtr.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SetClassLong.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SendMessageTimeout.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SendMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.RegisterWindowMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.RegisterClass.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.PostQuitMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.PostMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.MsgWaitForMultipleObjectsEx.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.MSG.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.MessageBeep.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.LoadString.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.KillTimer.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.IsWindowVisible.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.IsWindow.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.HIGHCONTRASTW.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetWindowThreadProcessId.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetWindowTextW.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetWindowTextLengthW.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetWindowLong.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetWindow.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetUserObjectInformation.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetSysColor.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetProcessWindowStation.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetKeyState.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetClassInfo.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.FindWindow.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.EnumWindows.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.DispatchMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.DestroyWindow.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.DefWindowProc.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.CreateWindowEx.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.Constants.csMark User32 constants as Windows-only
src/libraries/Common/src/Interop/Windows/Ucrtbase/Interop.MemAlloc.csMark ucrtbase interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/NegotiationInfoClass.csMark SspiCli helper as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.TokenSource.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.SSPI.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.SecurityLogonType.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.QuotaLimits.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.LsaLookupAuthenticationPackage.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.LsaLogonUser.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.LsaGetLogonSessionData.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.LsaFreeReturnBuffer.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.LsaDeregisterLogonProcess.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.LsaConnectUntrusted.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.KerbS4uLogin.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.KerbLogonSubmitType.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.AuthenticationPackageNames.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/Shell32/Interop.SHGetKnownFolderPath.csMark Shell32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Shell32/Interop.ShellExecuteExW.csMark Shell32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Secur32/Interop.LsaLogonProcessSafeHandle.csMark Secur32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Secur32/Interop.LsaFreeReturnBuffer.csMark Secur32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Secur32/Interop.LsaDeregisterLogonProcess.csMark Secur32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Secur32/Interop.LsaConnectUntrusted.csMark Secur32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Secur32/Interop.LsaCallAuthenticationPackage.csMark Secur32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Secur32/Interop.GetUserNameExW.csMark Secur32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/PerfCounter/Interop.PerformanceData.csMark PerfCounter interop as Windows-only
src/libraries/Common/src/Interop/Windows/Pdh/Interop.PdhFormatFromRawValue.csMark PDH interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.VariantClear.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.VariantChangeTypeEx.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.SysFreeString.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.SysAllocStringLen.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.SysAllocStringByteLen.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.SetErrorInfo.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.GetErrorInfo.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.PropVariantClear.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoUninitialize.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoTaskMemAlloc.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoInitializeEx.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoGetStandardMarshal.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoGetObjectContext.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoGetContextToken.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoGetApartmentType.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoCreateGuid.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CLSIDFromProgID.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.SYSTEM_PROCESS_INFORMATION.csMark NtDll interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.SYSTEM_LEAP_SECOND_INFORMATION.csMark NtDll interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.RtlNtStatusToDosError.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.RtlInitUnicodeString.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.RtlGetVersion.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.PROCESS_BASIC_INFORMATION.csMark NtDll interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.NtQuerySystemInformation.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.NtQueryInformationProcess.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.NtQueryInformationFile.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.NtQueryDirectoryFile.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.NtCreateFile.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.IO_STATUS_BLOCK.csMark NtDll interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.FILE_INFORMATION_CLASS.csMark NtDll interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.FILE_FULL_DIR_INFORMATION.csMark NtDll interop types as Windows-only
src/libraries/Common/src/Interop/Windows/Normaliz/Interop.Normalization.csMark Normaliz interop as Windows-only
src/libraries/Common/src/Interop/Windows/Normaliz/Interop.Idna.csMark Normaliz interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netutils/Interop.NetApiBufferFree.csMark Netutils interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.NetApiBufferFree.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.I_NetLogonControl2.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsRoleGetPrimaryDomainInformation.csMark Netapi32 types as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsRoleFreeMemory.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsGetSiteName.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsGetDcOpen.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsGetDcNext.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsGetDcName.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsGetDcClose.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsEnumerateDomainTrustsW.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DS_DOMAINTRUST_FLAG.csMark Netapi32 types as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DS_DOMAIN_TRUSTS.csMark Netapi32 types as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.UiPolicy.csMark NCrypt interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.SignVerify.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.Properties.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.NCryptOpenStorageProvider.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.NCryptFreeObject.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.NCryptDeriveSecretAgreement.csMark NCrypt interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.NCryptDeriveKeyMaterial.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.NCryptDecapsulateEncapsulate.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.NCryptBuffer.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.Keys.csMark NCrypt constants as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.ErrorCode.csMark NCrypt types as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.EncryptDecrypt.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.AsymmetricPaddingMode.csMark NCrypt types as Windows-only
src/libraries/Common/src/Interop/Windows/Mincore/Interop.WaitOnAddress.csMark Mincore interop as Windows-only
src/libraries/Common/src/Interop/Windows/Logoncli/Interop.DsGetDcName.csMark Logoncli interop as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.WriteFile_IntPtr.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.WaitCommEvent.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.VirtualQuery.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.Sleep.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.SetupComm.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.SetLastError.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.SetCommState.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.SetCommMask.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.SetCommBreak.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.ResumeThread.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.ReadFile_IntPtr.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.QueryPerformanceFrequency.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.QueryPerformanceCounter.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.PurgeComm.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GlobalMemoryStatusEx.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetUserDefaultLCID.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetTickCount64.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetThreadPriority.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetSystemTime.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetSystemInfo.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetStdHandle.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetProcessId.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetPriorityClass.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetNativeSystemInfo.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetLogicalDrives.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetLastError.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetEnvironmentStrings.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCurrentThread.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCurrentProcessorNumberEx.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCurrentProcessId.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCurrentProcess.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCPInfo.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetConsoleTitle.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetConsoleOutputCP.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetConsoleCP.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCommState.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCommProperties.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCommandLine.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.FreeLibrary.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.FreeEnvironmentStrings.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.FindClose.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.ExitProcess.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.EscapeCommFunction.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.CopyFile.csMark Kernel32 helper as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.CloseHandle.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.ClearCommBreak.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.Beep.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.NetworkInformation.csMark IpHlpApi interop as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.IP_ADDR_STRING.csMark IpHlpApi structs as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.ICMP.csMark IpHlpApi types/constants as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.GetNetworkParams.csMark IpHlpApi P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.FIXED_INFO.csMark IpHlpApi structs as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.ErrorCodes.csMark IpHlpApi constants as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.ConvertInterfaceNameToLuid.csMark IpHlpApi P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.ConvertInterfaceLuidToName.csMark IpHlpApi P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.ConvertInterfaceLuidToIndex.csMark IpHlpApi P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.ConvertInterfaceIndexToLuid.csMark IpHlpApi P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/HttpApi/Interop.HttpApi.csMark HttpApi interop as Windows-only
src/libraries/Common/src/Interop/Windows/HttpApi/Interop.ErrorCodes.csMark HttpApi constants as Windows-only
src/libraries/Common/src/Interop/Windows/Dsrole/Interop.DsRoleGetPrimaryDomainInformation.csMark Dsrole types as Windows-only
src/libraries/Common/src/Interop/Windows/Dsrole/Interop.DsRoleFreeMemory.csMark Dsrole P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Dnsapi/Interop.DnsTypes.csMark Dnsapi types as Windows-only
src/libraries/Common/src/Interop/Windows/Dnsapi/Interop.DnsApi.csMark Dnsapi interop as Windows-only
src/libraries/Common/src/Interop/Windows/CryptUI/Interop.CryptUIDlgCertificate.csMark CryptUI interop as Windows-only
src/libraries/Common/src/Interop/Windows/Crypt32/Interop.CryptEncodeObject.csMark Crypt32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Crypt32/Interop.CryptDecodeObject.csMark Crypt32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Credui/Interop.CredUIParseUserName.csMark Credui interop as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptVerifySignature.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptSignHash.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptSecretAgreement.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptGenRandom.GetRandomBytes.csFile-level CA1416 suppression for cross-platform RNG entrypoint
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptFinalizeKey.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptDuplicateHash.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptDestroySecret.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptDestroyKey.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptDestroyHash.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Authz/Interop.AuthzInitializeResourceManager.csMark Authz interop as Windows-only
src/libraries/Common/src/Interop/Windows/Authz/Interop.AuthzInitializeContextFromSid.csMark Authz interop as Windows-only
src/libraries/Common/src/Interop/Windows/Authz/Interop.AuthzGetInformationFromContext.csMark Authz interop as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.RegFlushKey.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.RegCloseKey.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.GetSecurityDescriptorLength.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.GetLengthSid.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.EventWriteString.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.EventUnregister.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.EventSetInformation.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.EventRegister.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.CryptEncrypt.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.CryptDecrypt.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.CryptCreateHash.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Activeds/Interop.FreeADsMem.csMark Activeds interop as Windows-only
src/libraries/Common/src/Interop/Windows/Activeds/Interop.ADsSetLastError.csMark Activeds interop as Windows-only
src/libraries/Common/src/Interop/Windows/Activeds/Interop.ADsOpenObject.csMark Activeds interop as Windows-only
src/libraries/Common/src/Interop/Windows/Activeds/Interop.ADsGetLastError.csMark Activeds interop as Windows-only
src/libraries/Common/src/Interop/Windows/Activeds/Interop.ADsEncodeBinaryData.csMark Activeds interop as Windows-only
src/coreclr/System.Private.CoreLib/src/Microsoft/Win32/OAVariantLib.csFile-level CA1416 suppression for Windows-only OLE Automation interop
src/coreclr/nativeaot/System.Private.CoreLib/src/System/Threading/Thread.NativeAot.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/coreclr/nativeaot/System.Private.CoreLib/src/System/Runtime/InteropServices/PInvokeMarshal.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/coreclr/nativeaot/System.Private.CoreLib/src/System/Environment.NativeAot.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/coreclr/nativeaot/System.Private.CoreLib/src/Internal/Runtime/FrozenObjectHeapManager.Windows.csFile-level CA1416 suppression for Windows-only interop usage
Comment threadsrc/libraries/Common/src/System/Threading/AsyncOverSyncWithIoCancellation.cs
@pavelsavara
Potential fix for pull request finding
c378461
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
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review requested due to automatic review settings
August 29, 2026 08:42
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🔵 Needs a closer look
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Comment thread...eclr/nativeaot/System.Private.CoreLib/src/Internal/Runtime/CompilerHelpers/InteropHelpers.cs
#if TARGET_WINDOWS
 private static unsafe IntPtr GetProcAddressWithMangling(IntPtr hModule, byte* methodName, MethodFixupCell* pCell)
 {
#pragma warning disable CA1416 // Only reached on Windows via TARGET_WINDOWS.
@MichalStrehovskyMichalStrehovskyAug 31, 2026

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Why do we need suppressions like this? Is this a bug in the analyzer? Can you link the bug so we can delete these once the bug is fixed?
@pavelsavarapavelsavaraAug 31, 2026

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The platform neutral CoreLib is compiled with MSBuild TargetOS set to the same platform as the machine doing the compilation.

Therefore TargetsWindows is true.

Therefore #if TARGET_WINDOWS is true, not false.
As a consequence, platform neutral CoreLib has those calls included and we get the CA1416.
Any idea what to do with that would be appreciated.
@MichalStrehovskyMichalStrehovskyAug 31, 2026

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What is platform neutral corelib? Where/how do we build it and what's the purpose?
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sorry, "neutral corelib" is wrong angle. And maybe I'm confused about TargetsWindows values.
It's those Windows P/Invokes sit in the unconditionally-compiled part of CoreLib, so they land in every CoreLib flavor including browser.
The NLS/Normaliz declarations aren't under TargetsWindows at all — they're unconditional.
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This lets the wasm CoreCLR P/Invoke scan (PInvokeCollector) skip these declarations on browser/wasi — removing WASM0066 noise at the source — and makes them visible to CA1416 platform-compatibility analysis.
How are we ending up with these DllImports under WASM in the first place? I would have expect us not to compile these in the first place under WASM. And why Windows specifically and not macOS/Linux?
@pavelsavara
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How are we ending up with these DllImports under WASM in the first place?
Platform neutral CoreLib contains windows calls.
And why Windows specifically and not macOS/Linux?
I think we ship the runtime pack from windows machine.
This PR focuses on Windows only and I think we need to annotate OSX and Unix too (for consistency).
I just wanted to do that in a separate PRs.
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August 31, 2026 18:30
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Annotate all DllImport/LibraryImport/UnmanagedCallersOnly with [SupportedOSPlatform]


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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Strip utm_, fbclid, gclid, etc. from all links on page
(function() {
var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
function cleanUrl(url) {
try {
var u = new URL(url, window.location.origin);
var changed = false;
trackingParams.forEach(function(p) {
if (u.searchParams.has(p)) {
u.searchParams.delete(p);
changed = true;
}
});
return changed ? u.toString() : url;
} catch (e) {
return url;
}
}
function cleanLinks() {
document.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
cleanLinks();
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1) {
if (node.tagName === 'A') cleanLinks();
node.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '
Annotate Windows interop declarations with [SupportedOSPlatform("windows")] by Copilot · Pull Request #132778 · dotnet/runtime · GitHub
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Annotate Windows interop declarations with [SupportedOSPlatform("windows")] - #132778
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Annotate Windows interop declarations with [SupportedOSPlatform("windows")]#132778
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Annotates the platform-specific DllImport / LibraryImport / UnmanagedCallersOnly declarations under src/libraries/Common/src/Interop/Windows/** with [SupportedOSPlatform("windows")], and annotates or gates their callers accordingly.
This lets the wasm CoreCLR P/Invoke scan (PInvokeCollector) skip these declarations on browser/wasi — removing WASM0066 noise at the source — and makes them visible to CA1416 platform-compatibility analysis.
Contributes to #132776
Scope
  • Windows interop only — all 38 modules under src/libraries/Common/src/Interop/Windows/. Unix/macOS interop is not part of this change.
  • The attribute is guarded with #if NET so the shared files still compile for netstandard/netfx consumers (e.g. TestUtilities on net481), where SupportedOSPlatformAttribute does not exist.
Approach
  • Declarations. Every Windows P/Invoke / UnmanagedCallersOnly declaration is annotated. Type-level (coarse) annotation is used on the Interop. partial class where safe; per-method annotation is used where a module's const/struct/enum members are consumed by cross-platform code — e.g. the public enums in System.Net.Primitives (SslProtocols, SocketError, …) whose values derive from Interop.SChannel.* / Interop.Winsock.* / Interop.Crypt32.* — so those members stay platform-neutral. Kernel32, Advapi32, Crypt32, BCrypt, and WinSock are per-method; the remaining modules are type-level.
  • Managed wrapper helpers. A helper that calls an annotated P/Invoke is itself annotated [SupportedOSPlatform("windows")] whenever all of its callers are Windows-only, rather than suppressing the warning with a pragma. A #pragma warning disable CA1416 is used only where the requirement cannot be expressed as an annotation: (1) Windows-only-compiled implementation files (*.Windows.cs) whose members are invoked by their cross-platform partial siblings, and (2) the few helpers whose managed entry point is genuinely cross-platform — Interop.GetRandomBytes (the platform-abstracted RNG) and Kernel32.GetMessage (reached through the portable Win32Marshal error path).
  • Callers. Cross-platform files in System.Private.CoreLib reach Windows-only interop only through compile-time gates (#if TARGET_WINDOWS, #if FEATURE_COMINTEROP, *.Windows.cs, *.Nls.cs) that CA1416 cannot observe; those files carry scoped or file-level suppressions where a Windows annotation would incorrectly propagate to portable code.
Validation
  • System.Private.CoreLib builds clean with no CA1416 diagnostics on Windows (CoreCLR and NativeAOT) and on browser/wasm.
  • Cross-platform consumers — System.Net.*, System.Security.Cryptography, System.Diagnostics.*, System.IO.*, System.Console, System.DirectoryServices.Protocols, and others — build clean across all target frameworks, including browser, wasi, unix, linux, osx, and android.
  • netstandard/net481 consumers of the shared interop build clean.
Note
This pull request was authored with GitHub Copilot.
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Annotate all DllImport/LibraryImport/UnmanagedCallersOnly with [SupportedOSPlatform]
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[WIP] Annotate DllImport/LibraryImport/UnmanagedCallersOnly with [SupportedOSPlatform]Research: scope [SupportedOSPlatform] annotation of interop declarationsAug 26, 2026
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Annotate NtDll interop with [SupportedOSPlatform("windows")]; guard C…
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Annotate User32/Crypt32 interop; use fully-qualified [SupportedOSPlat…
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Convert Crypt32 to method-level [SupportedOSPlatform] (consts consume…
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…d cross-platform)
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Annotate no-coupling Windows interop modules with [SupportedOSPlatfor…
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Annotate Ole32 interop (coarse) + guard cross-platform CoreLib callers
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Annotate OleAut32 interop (coarse) + guard cross-platform CoreLib cal…
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Annotate Normaliz interop (coarse) + guard Windows NLS CoreLib callers
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Annotate Advapi32 interop method-level (structs/consts consumed cross…
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Annotate Kernel32 interop method-level (structs/consts consumed cross…
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Annotate IsGetConsoleModeCallSuccessful helper [SupportedOSPlatform] …
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Research: scope [SupportedOSPlatform] annotation of interop declarationsAnnotate Windows interop declarations with [SupportedOSPlatform("windows")]Aug 27, 2026
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Pull request overview
This PR broadly annotates Windows-specific interop declarations with [SupportedOSPlatform("windows")] and updates/gates callers (primarily via CA1416 suppressions in Windows-only or Windows-gated code) so platform-compatibility analysis and wasm P/Invoke scanning can correctly skip Windows-only entrypoints.
Changes:
  • Add [SupportedOSPlatform("windows")] annotations across Windows interop declarations under src/libraries/Common/src/Interop/Windows/** (and select other Windows-only declarations).
  • Add #pragma warning disable CA1416 (and a few scoped disable/restore blocks) in Windows-only or Windows-gated call sites across CoreLib/Common/NativeAOT.
  • Add/adjust a few Windows-only managed helpers / callbacks to carry platform annotations.
Reviewed changes
Copilot reviewed 300 out of 758 changed files in this pull request and generated 1 comment.
Show a summary per file
FileDescription
src/libraries/System.Private.CoreLib/src/System/TimeZoneInfo.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/WindowsThreadPool.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/WaitHandle.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/TimerQueue.WindowsThreadPool.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/ThreadPoolBoundHandle.WindowsThreadPool.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/Thread.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/Semaphore.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/RegisteredWaitHandle.WindowsThreadPool.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/PortableThreadPool.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/PortableThreadPool.IO.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/Mutex.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/LowLevelFutex.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/EventWaitHandle.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Security/SecureString.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/MemoryFailPoint.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/RuntimeInformation.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/PosixSignalRegistration.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/NativeMemory.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/NativeLibrary.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/NativeLibrary.csScoped CA1416 suppression around TARGET_WINDOWS interop call
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/Marshal.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/Marshal.csScoped CA1416 suppression around TARGET_WINDOWS COM interop
src/libraries/System.Private.CoreLib/src/System/IO/Strategies/FileStreamHelpers.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/IO/RandomAccess.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/IO/PathHelper.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/IO/Path.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/IO/FileSystemInfo.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/IO/FileSystem.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/IO/Enumeration/FileSystemEnumerator.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/IO/Enumeration/FileSystemEntry.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/IO/DriveInfoInternal.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/IO/Directory.Windows.csFile-level CA1416 suppression for Windows implementation called by cross-platform partial
src/libraries/System.Private.CoreLib/src/System/Guid.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/TextInfo.Nls.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/Normalization.Nls.csFile-level CA1416 suppression for Windows-only NLS interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/IdnMapping.Nls.csFile-level CA1416 suppression for Windows-only NLS interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/CultureInfo.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/CultureData.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/CultureData.Nls.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/CompareInfo.Nls.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/CalendarData.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/CalendarData.Nls.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Environment.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Environment.Variables.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Diagnostics/Tracing/RuntimeEventSourceHelper.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Diagnostics/Stopwatch.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Diagnostics/DebugProvider.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/DateTime.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/AppDomain.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/Microsoft/Win32/SafeHandles/SafeThreadPoolIOHandle.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/Microsoft/Win32/SafeHandles/SafeRegistryHandle.csFile-level CA1416 suppression for Windows-only registry interop usage
src/libraries/System.Private.CoreLib/src/Internal/Win32/RegistryKey.csFile-level CA1416 suppression for Windows-only registry interop usage
src/libraries/System.Private.CoreLib/src/Internal/Console.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Net.NameResolution/src/System/Net/NameResolutionPal.Windows.csAdd SupportedOSPlatform to UnmanagedCallersOnly callback
src/libraries/System.Data.OleDb/src/UnsafeNativeMethods.COMWrappers.csAdd SupportedOSPlatform to Windows-only LibraryImport
src/libraries/Common/src/System/Threading/AsyncOverSyncWithIoCancellation.csAdd SupportedOSPlatform to Windows-only helper type
src/libraries/Common/src/System/IO/FileSystem.DirectoryCreation.Windows.csFile-level CA1416 suppression for Windows implementation invoked by cross-platform partial
src/libraries/Common/src/System/IO/FileSystem.Attributes.Windows.csFile-level CA1416 suppression for Windows implementation invoked by cross-platform partial
src/libraries/Common/src/Microsoft/Win32/SafeHandles/SafeTokenHandle.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/Common/src/Microsoft/Win32/SafeHandles/SafeThreadHandle.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/Common/src/Interop/Windows/WtsApi32/Interop.WTSUnRegisterSessionNotification.csMark WtsApi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/WtsApi32/Interop.WTSRegisterSessionNotification.csMark WtsApi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/WtsApi32/Interop.Constants.csMark WtsApi32 constants as Windows-only
src/libraries/Common/src/Interop/Windows/Wldap32/Interop.Ldap.csMark Wldap32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Wldap32/Interop.Ber.csMark Wldap32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Wkscli/Interop.NetWkstaGetInfo.csMark Wkscli interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.WSARecv.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.WSAConnect.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.shutdown.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.sendto.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.send.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.recvfrom.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.recv.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.listen.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.getsockname.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.getpeername.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.gethostname.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.closesocket.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.bind.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.accept.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutWrite.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutRestart.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutReset.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutPrepareHeader.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutPause.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutOpen.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutGetNumDevs.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutGetDevCaps.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutClose.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.PlaySound.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.MMSYSERR.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.mmioRead.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.mmioOpen.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.mmioDescend.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.mmioClose.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.mmioAscend.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.MMCKINFO.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinHttp/Interop.winhttp.csMark WinHTTP interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinHttp/Interop.winhttp_types.csMark WinHTTP types/constants as Windows-only
src/libraries/Common/src/Interop/Windows/WinHttp/Interop.SafeWinHttpHandle.csMark WinHTTP safe handle as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketSend.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketReceive.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketGetAction.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketEndServerHandshake.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketDeleteHandle.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketCreateServerHandle.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketCreateClientHandle.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketCompleteAction.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketBeginServerHandshake.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketBeginClientHandshake.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketAbortHandle.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.Structs.csMark Windows WebSocket structs as Windows-only
src/libraries/Common/src/Interop/Windows/Version/Interop.VSFixedFileInfo.csMark Version interop structs as Windows-only
src/libraries/Common/src/Interop/Windows/Version/Interop.VerQueryValue.csMark Version interop as Windows-only
src/libraries/Common/src/Interop/Windows/Version/Interop.GetFileVersionInfoSizeEx.csMark Version interop as Windows-only
src/libraries/Common/src/Interop/Windows/Version/Interop.GetFileVersionInfoEx.csMark Version interop as Windows-only
src/libraries/Common/src/Interop/Windows/Version/Interop.FileVersionInfoType.csMark Version interop as Windows-only
src/libraries/Common/src/Interop/Windows/Version/Interop.FileVersionInfo.csMark Version interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.WndProc.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.WNDCLASS.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.Win32SystemColors.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.WaitForInputIdle.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.USEROBJECTFLAGS.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.UnregisterClass.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.TranslateMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SystemParametersInfo.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SetWindowLongPtr.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SetWindowLong.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SetTimer.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SetClassLongPtr.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SetClassLong.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SendMessageTimeout.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SendMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.RegisterWindowMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.RegisterClass.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.PostQuitMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.PostMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.MsgWaitForMultipleObjectsEx.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.MSG.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.MessageBeep.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.LoadString.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.KillTimer.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.IsWindowVisible.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.IsWindow.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.HIGHCONTRASTW.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetWindowThreadProcessId.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetWindowTextW.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetWindowTextLengthW.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetWindowLong.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetWindow.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetUserObjectInformation.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetSysColor.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetProcessWindowStation.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetKeyState.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetClassInfo.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.FindWindow.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.EnumWindows.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.DispatchMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.DestroyWindow.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.DefWindowProc.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.CreateWindowEx.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.Constants.csMark User32 constants as Windows-only
src/libraries/Common/src/Interop/Windows/Ucrtbase/Interop.MemAlloc.csMark ucrtbase interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/NegotiationInfoClass.csMark SspiCli helper as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.TokenSource.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.SSPI.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.SecurityLogonType.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.QuotaLimits.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.LsaLookupAuthenticationPackage.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.LsaLogonUser.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.LsaGetLogonSessionData.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.LsaFreeReturnBuffer.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.LsaDeregisterLogonProcess.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.LsaConnectUntrusted.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.KerbS4uLogin.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.KerbLogonSubmitType.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.AuthenticationPackageNames.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/Shell32/Interop.SHGetKnownFolderPath.csMark Shell32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Shell32/Interop.ShellExecuteExW.csMark Shell32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Secur32/Interop.LsaLogonProcessSafeHandle.csMark Secur32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Secur32/Interop.LsaFreeReturnBuffer.csMark Secur32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Secur32/Interop.LsaDeregisterLogonProcess.csMark Secur32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Secur32/Interop.LsaConnectUntrusted.csMark Secur32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Secur32/Interop.LsaCallAuthenticationPackage.csMark Secur32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Secur32/Interop.GetUserNameExW.csMark Secur32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/PerfCounter/Interop.PerformanceData.csMark PerfCounter interop as Windows-only
src/libraries/Common/src/Interop/Windows/Pdh/Interop.PdhFormatFromRawValue.csMark PDH interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.VariantClear.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.VariantChangeTypeEx.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.SysFreeString.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.SysAllocStringLen.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.SysAllocStringByteLen.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.SetErrorInfo.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.GetErrorInfo.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.PropVariantClear.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoUninitialize.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoTaskMemAlloc.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoInitializeEx.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoGetStandardMarshal.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoGetObjectContext.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoGetContextToken.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoGetApartmentType.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoCreateGuid.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CLSIDFromProgID.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.SYSTEM_PROCESS_INFORMATION.csMark NtDll interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.SYSTEM_LEAP_SECOND_INFORMATION.csMark NtDll interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.RtlNtStatusToDosError.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.RtlInitUnicodeString.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.RtlGetVersion.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.PROCESS_BASIC_INFORMATION.csMark NtDll interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.NtQuerySystemInformation.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.NtQueryInformationProcess.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.NtQueryInformationFile.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.NtQueryDirectoryFile.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.NtCreateFile.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.IO_STATUS_BLOCK.csMark NtDll interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.FILE_INFORMATION_CLASS.csMark NtDll interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.FILE_FULL_DIR_INFORMATION.csMark NtDll interop types as Windows-only
src/libraries/Common/src/Interop/Windows/Normaliz/Interop.Normalization.csMark Normaliz interop as Windows-only
src/libraries/Common/src/Interop/Windows/Normaliz/Interop.Idna.csMark Normaliz interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netutils/Interop.NetApiBufferFree.csMark Netutils interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.NetApiBufferFree.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.I_NetLogonControl2.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsRoleGetPrimaryDomainInformation.csMark Netapi32 types as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsRoleFreeMemory.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsGetSiteName.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsGetDcOpen.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsGetDcNext.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsGetDcName.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsGetDcClose.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsEnumerateDomainTrustsW.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DS_DOMAINTRUST_FLAG.csMark Netapi32 types as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DS_DOMAIN_TRUSTS.csMark Netapi32 types as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.UiPolicy.csMark NCrypt interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.SignVerify.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.Properties.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.NCryptOpenStorageProvider.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.NCryptFreeObject.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.NCryptDeriveSecretAgreement.csMark NCrypt interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.NCryptDeriveKeyMaterial.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.NCryptDecapsulateEncapsulate.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.NCryptBuffer.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.Keys.csMark NCrypt constants as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.ErrorCode.csMark NCrypt types as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.EncryptDecrypt.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.AsymmetricPaddingMode.csMark NCrypt types as Windows-only
src/libraries/Common/src/Interop/Windows/Mincore/Interop.WaitOnAddress.csMark Mincore interop as Windows-only
src/libraries/Common/src/Interop/Windows/Logoncli/Interop.DsGetDcName.csMark Logoncli interop as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.WriteFile_IntPtr.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.WaitCommEvent.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.VirtualQuery.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.Sleep.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.SetupComm.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.SetLastError.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.SetCommState.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.SetCommMask.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.SetCommBreak.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.ResumeThread.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.ReadFile_IntPtr.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.QueryPerformanceFrequency.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.QueryPerformanceCounter.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.PurgeComm.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GlobalMemoryStatusEx.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetUserDefaultLCID.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetTickCount64.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetThreadPriority.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetSystemTime.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetSystemInfo.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetStdHandle.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetProcessId.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetPriorityClass.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetNativeSystemInfo.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetLogicalDrives.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetLastError.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetEnvironmentStrings.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCurrentThread.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCurrentProcessorNumberEx.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCurrentProcessId.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCurrentProcess.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCPInfo.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetConsoleTitle.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetConsoleOutputCP.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetConsoleCP.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCommState.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCommProperties.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCommandLine.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.FreeLibrary.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.FreeEnvironmentStrings.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.FindClose.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.ExitProcess.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.EscapeCommFunction.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.CopyFile.csMark Kernel32 helper as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.CloseHandle.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.ClearCommBreak.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.Beep.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.NetworkInformation.csMark IpHlpApi interop as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.IP_ADDR_STRING.csMark IpHlpApi structs as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.ICMP.csMark IpHlpApi types/constants as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.GetNetworkParams.csMark IpHlpApi P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.FIXED_INFO.csMark IpHlpApi structs as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.ErrorCodes.csMark IpHlpApi constants as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.ConvertInterfaceNameToLuid.csMark IpHlpApi P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.ConvertInterfaceLuidToName.csMark IpHlpApi P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.ConvertInterfaceLuidToIndex.csMark IpHlpApi P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.ConvertInterfaceIndexToLuid.csMark IpHlpApi P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/HttpApi/Interop.HttpApi.csMark HttpApi interop as Windows-only
src/libraries/Common/src/Interop/Windows/HttpApi/Interop.ErrorCodes.csMark HttpApi constants as Windows-only
src/libraries/Common/src/Interop/Windows/Dsrole/Interop.DsRoleGetPrimaryDomainInformation.csMark Dsrole types as Windows-only
src/libraries/Common/src/Interop/Windows/Dsrole/Interop.DsRoleFreeMemory.csMark Dsrole P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Dnsapi/Interop.DnsTypes.csMark Dnsapi types as Windows-only
src/libraries/Common/src/Interop/Windows/Dnsapi/Interop.DnsApi.csMark Dnsapi interop as Windows-only
src/libraries/Common/src/Interop/Windows/CryptUI/Interop.CryptUIDlgCertificate.csMark CryptUI interop as Windows-only
src/libraries/Common/src/Interop/Windows/Crypt32/Interop.CryptEncodeObject.csMark Crypt32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Crypt32/Interop.CryptDecodeObject.csMark Crypt32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Credui/Interop.CredUIParseUserName.csMark Credui interop as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptVerifySignature.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptSignHash.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptSecretAgreement.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptGenRandom.GetRandomBytes.csFile-level CA1416 suppression for cross-platform RNG entrypoint
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptFinalizeKey.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptDuplicateHash.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptDestroySecret.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptDestroyKey.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptDestroyHash.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Authz/Interop.AuthzInitializeResourceManager.csMark Authz interop as Windows-only
src/libraries/Common/src/Interop/Windows/Authz/Interop.AuthzInitializeContextFromSid.csMark Authz interop as Windows-only
src/libraries/Common/src/Interop/Windows/Authz/Interop.AuthzGetInformationFromContext.csMark Authz interop as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.RegFlushKey.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.RegCloseKey.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.GetSecurityDescriptorLength.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.GetLengthSid.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.EventWriteString.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.EventUnregister.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.EventSetInformation.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.EventRegister.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.CryptEncrypt.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.CryptDecrypt.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.CryptCreateHash.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Activeds/Interop.FreeADsMem.csMark Activeds interop as Windows-only
src/libraries/Common/src/Interop/Windows/Activeds/Interop.ADsSetLastError.csMark Activeds interop as Windows-only
src/libraries/Common/src/Interop/Windows/Activeds/Interop.ADsOpenObject.csMark Activeds interop as Windows-only
src/libraries/Common/src/Interop/Windows/Activeds/Interop.ADsGetLastError.csMark Activeds interop as Windows-only
src/libraries/Common/src/Interop/Windows/Activeds/Interop.ADsEncodeBinaryData.csMark Activeds interop as Windows-only
src/coreclr/System.Private.CoreLib/src/Microsoft/Win32/OAVariantLib.csFile-level CA1416 suppression for Windows-only OLE Automation interop
src/coreclr/nativeaot/System.Private.CoreLib/src/System/Threading/Thread.NativeAot.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/coreclr/nativeaot/System.Private.CoreLib/src/System/Runtime/InteropServices/PInvokeMarshal.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/coreclr/nativeaot/System.Private.CoreLib/src/System/Environment.NativeAot.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/coreclr/nativeaot/System.Private.CoreLib/src/Internal/Runtime/FrozenObjectHeapManager.Windows.csFile-level CA1416 suppression for Windows-only interop usage
Comment threadsrc/libraries/Common/src/System/Threading/AsyncOverSyncWithIoCancellation.cs
@pavelsavara
Potential fix for pull request finding
c378461
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
CopilotAI
review requested due to automatic review settings
August 29, 2026 08:42
CopilotAI
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Aug 29, 2026
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🔵 Needs a closer look
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  • Files reviewed: 300/758 changed files
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  • Review effort level: Lite

This was referenced Aug 29, 2026

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MichalStrehovsky
MichalStrehovsky
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Aug 31, 2026
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Comment thread...eclr/nativeaot/System.Private.CoreLib/src/Internal/Runtime/CompilerHelpers/InteropHelpers.cs
#if TARGET_WINDOWS
 private static unsafe IntPtr GetProcAddressWithMangling(IntPtr hModule, byte* methodName, MethodFixupCell* pCell)
 {
#pragma warning disable CA1416 // Only reached on Windows via TARGET_WINDOWS.
@MichalStrehovskyMichalStrehovskyAug 31, 2026

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Why do we need suppressions like this? Is this a bug in the analyzer? Can you link the bug so we can delete these once the bug is fixed?
@pavelsavarapavelsavaraAug 31, 2026

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The platform neutral CoreLib is compiled with MSBuild TargetOS set to the same platform as the machine doing the compilation.

Therefore TargetsWindows is true.

Therefore #if TARGET_WINDOWS is true, not false.
As a consequence, platform neutral CoreLib has those calls included and we get the CA1416.
Any idea what to do with that would be appreciated.
@MichalStrehovskyMichalStrehovskyAug 31, 2026

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What is platform neutral corelib? Where/how do we build it and what's the purpose?
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sorry, "neutral corelib" is wrong angle. And maybe I'm confused about TargetsWindows values.
It's those Windows P/Invokes sit in the unconditionally-compiled part of CoreLib, so they land in every CoreLib flavor including browser.
The NLS/Normaliz declarations aren't under TargetsWindows at all — they're unconditional.
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This lets the wasm CoreCLR P/Invoke scan (PInvokeCollector) skip these declarations on browser/wasi — removing WASM0066 noise at the source — and makes them visible to CA1416 platform-compatibility analysis.
How are we ending up with these DllImports under WASM in the first place? I would have expect us not to compile these in the first place under WASM. And why Windows specifically and not macOS/Linux?
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How are we ending up with these DllImports under WASM in the first place?
Platform neutral CoreLib contains windows calls.
And why Windows specifically and not macOS/Linux?
I think we ship the runtime pack from windows machine.
This PR focuses on Windows only and I think we need to annotate OSX and Unix too (for consistency).
I just wanted to do that in a separate PRs.
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August 31, 2026 18:30
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Annotate all DllImport/LibraryImport/UnmanagedCallersOnly with [SupportedOSPlatform]


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Annotate Windows interop declarations with [SupportedOSPlatform("windows")] by Copilot · Pull Request #132778 · dotnet/runtime · GitHub
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Annotates the platform-specific DllImport / LibraryImport / UnmanagedCallersOnly declarations under src/libraries/Common/src/Interop/Windows/** with [SupportedOSPlatform("windows")], and annotates or gates their callers accordingly.
This lets the wasm CoreCLR P/Invoke scan (PInvokeCollector) skip these declarations on browser/wasi — removing WASM0066 noise at the source — and makes them visible to CA1416 platform-compatibility analysis.
Contributes to #132776
Scope
  • Windows interop only — all 38 modules under src/libraries/Common/src/Interop/Windows/. Unix/macOS interop is not part of this change.
  • The attribute is guarded with #if NET so the shared files still compile for netstandard/netfx consumers (e.g. TestUtilities on net481), where SupportedOSPlatformAttribute does not exist.
Approach
  • Declarations. Every Windows P/Invoke / UnmanagedCallersOnly declaration is annotated. Type-level (coarse) annotation is used on the Interop. partial class where safe; per-method annotation is used where a module's const/struct/enum members are consumed by cross-platform code — e.g. the public enums in System.Net.Primitives (SslProtocols, SocketError, …) whose values derive from Interop.SChannel.* / Interop.Winsock.* / Interop.Crypt32.* — so those members stay platform-neutral. Kernel32, Advapi32, Crypt32, BCrypt, and WinSock are per-method; the remaining modules are type-level.
  • Managed wrapper helpers. A helper that calls an annotated P/Invoke is itself annotated [SupportedOSPlatform("windows")] whenever all of its callers are Windows-only, rather than suppressing the warning with a pragma. A #pragma warning disable CA1416 is used only where the requirement cannot be expressed as an annotation: (1) Windows-only-compiled implementation files (*.Windows.cs) whose members are invoked by their cross-platform partial siblings, and (2) the few helpers whose managed entry point is genuinely cross-platform — Interop.GetRandomBytes (the platform-abstracted RNG) and Kernel32.GetMessage (reached through the portable Win32Marshal error path).
  • Callers. Cross-platform files in System.Private.CoreLib reach Windows-only interop only through compile-time gates (#if TARGET_WINDOWS, #if FEATURE_COMINTEROP, *.Windows.cs, *.Nls.cs) that CA1416 cannot observe; those files carry scoped or file-level suppressions where a Windows annotation would incorrectly propagate to portable code.
Validation
  • System.Private.CoreLib builds clean with no CA1416 diagnostics on Windows (CoreCLR and NativeAOT) and on browser/wasm.
  • Cross-platform consumers — System.Net.*, System.Security.Cryptography, System.Diagnostics.*, System.IO.*, System.Console, System.DirectoryServices.Protocols, and others — build clean across all target frameworks, including browser, wasi, unix, linux, osx, and android.
  • netstandard/net481 consumers of the shared interop build clean.
Note
This pull request was authored with GitHub Copilot.
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Annotate all DllImport/LibraryImport/UnmanagedCallersOnly with [SupportedOSPlatform]
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[WIP] Annotate DllImport/LibraryImport/UnmanagedCallersOnly with [SupportedOSPlatform]Research: scope [SupportedOSPlatform] annotation of interop declarationsAug 26, 2026
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Annotate NtDll interop with [SupportedOSPlatform("windows")]; guard C…
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Co-authored-by: pavelsavara <271576+pavelsavara@users.noreply.github.com>

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Annotate User32/Crypt32 interop; use fully-qualified [SupportedOSPlat…
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…form] across modules
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Convert Crypt32 to method-level [SupportedOSPlatform] (consts consume…
6fa3ebe
…d cross-platform)
@pavelsavara
Annotate no-coupling Windows interop modules with [SupportedOSPlatfor…
e77d94e
…m] (coarse; method-level for WinSock)
@pavelsavara
Annotate Ole32 interop (coarse) + guard cross-platform CoreLib callers
e6647f7
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Annotate OleAut32 interop (coarse) + guard cross-platform CoreLib cal…
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…lers
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Annotate Normaliz interop (coarse) + guard Windows NLS CoreLib callers
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Annotate BCrypt interop method-level (consts consumed cross-platform)…
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Annotate Advapi32 interop method-level (structs/consts consumed cross…
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…-platform) + guard CoreLib callers
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Annotate Kernel32 interop method-level (structs/consts consumed cross…
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…-platform) + guard CoreLib callers
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Annotate IsGetConsoleModeCallSuccessful helper [SupportedOSPlatform] …
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Research: scope [SupportedOSPlatform] annotation of interop declarationsAnnotate Windows interop declarations with [SupportedOSPlatform("windows")]Aug 27, 2026
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/azp run runtime-extra-platforms
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Pull request overview
This PR broadly annotates Windows-specific interop declarations with [SupportedOSPlatform("windows")] and updates/gates callers (primarily via CA1416 suppressions in Windows-only or Windows-gated code) so platform-compatibility analysis and wasm P/Invoke scanning can correctly skip Windows-only entrypoints.
Changes:
  • Add [SupportedOSPlatform("windows")] annotations across Windows interop declarations under src/libraries/Common/src/Interop/Windows/** (and select other Windows-only declarations).
  • Add #pragma warning disable CA1416 (and a few scoped disable/restore blocks) in Windows-only or Windows-gated call sites across CoreLib/Common/NativeAOT.
  • Add/adjust a few Windows-only managed helpers / callbacks to carry platform annotations.
Reviewed changes
Copilot reviewed 300 out of 758 changed files in this pull request and generated 1 comment.
Show a summary per file
FileDescription
src/libraries/System.Private.CoreLib/src/System/TimeZoneInfo.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/WindowsThreadPool.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/WaitHandle.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/TimerQueue.WindowsThreadPool.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/ThreadPoolBoundHandle.WindowsThreadPool.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/Thread.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/Semaphore.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/RegisteredWaitHandle.WindowsThreadPool.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/PortableThreadPool.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/PortableThreadPool.IO.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/Mutex.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/LowLevelFutex.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/EventWaitHandle.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Security/SecureString.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/MemoryFailPoint.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/RuntimeInformation.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/PosixSignalRegistration.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/NativeMemory.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/NativeLibrary.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/NativeLibrary.csScoped CA1416 suppression around TARGET_WINDOWS interop call
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/Marshal.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/Marshal.csScoped CA1416 suppression around TARGET_WINDOWS COM interop
src/libraries/System.Private.CoreLib/src/System/IO/Strategies/FileStreamHelpers.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/IO/RandomAccess.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/IO/PathHelper.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/IO/Path.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/IO/FileSystemInfo.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/IO/FileSystem.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/IO/Enumeration/FileSystemEnumerator.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/IO/Enumeration/FileSystemEntry.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/IO/DriveInfoInternal.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/IO/Directory.Windows.csFile-level CA1416 suppression for Windows implementation called by cross-platform partial
src/libraries/System.Private.CoreLib/src/System/Guid.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/TextInfo.Nls.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/Normalization.Nls.csFile-level CA1416 suppression for Windows-only NLS interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/IdnMapping.Nls.csFile-level CA1416 suppression for Windows-only NLS interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/CultureInfo.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/CultureData.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/CultureData.Nls.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/CompareInfo.Nls.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/CalendarData.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/CalendarData.Nls.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Environment.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Environment.Variables.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Diagnostics/Tracing/RuntimeEventSourceHelper.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Diagnostics/Stopwatch.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Diagnostics/DebugProvider.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/DateTime.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/AppDomain.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/Microsoft/Win32/SafeHandles/SafeThreadPoolIOHandle.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/Microsoft/Win32/SafeHandles/SafeRegistryHandle.csFile-level CA1416 suppression for Windows-only registry interop usage
src/libraries/System.Private.CoreLib/src/Internal/Win32/RegistryKey.csFile-level CA1416 suppression for Windows-only registry interop usage
src/libraries/System.Private.CoreLib/src/Internal/Console.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Net.NameResolution/src/System/Net/NameResolutionPal.Windows.csAdd SupportedOSPlatform to UnmanagedCallersOnly callback
src/libraries/System.Data.OleDb/src/UnsafeNativeMethods.COMWrappers.csAdd SupportedOSPlatform to Windows-only LibraryImport
src/libraries/Common/src/System/Threading/AsyncOverSyncWithIoCancellation.csAdd SupportedOSPlatform to Windows-only helper type
src/libraries/Common/src/System/IO/FileSystem.DirectoryCreation.Windows.csFile-level CA1416 suppression for Windows implementation invoked by cross-platform partial
src/libraries/Common/src/System/IO/FileSystem.Attributes.Windows.csFile-level CA1416 suppression for Windows implementation invoked by cross-platform partial
src/libraries/Common/src/Microsoft/Win32/SafeHandles/SafeTokenHandle.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/Common/src/Microsoft/Win32/SafeHandles/SafeThreadHandle.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/Common/src/Interop/Windows/WtsApi32/Interop.WTSUnRegisterSessionNotification.csMark WtsApi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/WtsApi32/Interop.WTSRegisterSessionNotification.csMark WtsApi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/WtsApi32/Interop.Constants.csMark WtsApi32 constants as Windows-only
src/libraries/Common/src/Interop/Windows/Wldap32/Interop.Ldap.csMark Wldap32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Wldap32/Interop.Ber.csMark Wldap32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Wkscli/Interop.NetWkstaGetInfo.csMark Wkscli interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.WSARecv.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.WSAConnect.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.shutdown.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.sendto.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.send.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.recvfrom.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.recv.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.listen.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.getsockname.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.getpeername.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.gethostname.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.closesocket.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.bind.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.accept.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutWrite.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutRestart.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutReset.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutPrepareHeader.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutPause.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutOpen.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutGetNumDevs.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutGetDevCaps.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutClose.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.PlaySound.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.MMSYSERR.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.mmioRead.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.mmioOpen.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.mmioDescend.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.mmioClose.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.mmioAscend.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.MMCKINFO.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinHttp/Interop.winhttp.csMark WinHTTP interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinHttp/Interop.winhttp_types.csMark WinHTTP types/constants as Windows-only
src/libraries/Common/src/Interop/Windows/WinHttp/Interop.SafeWinHttpHandle.csMark WinHTTP safe handle as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketSend.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketReceive.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketGetAction.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketEndServerHandshake.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketDeleteHandle.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketCreateServerHandle.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketCreateClientHandle.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketCompleteAction.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketBeginServerHandshake.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketBeginClientHandshake.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketAbortHandle.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.Structs.csMark Windows WebSocket structs as Windows-only
src/libraries/Common/src/Interop/Windows/Version/Interop.VSFixedFileInfo.csMark Version interop structs as Windows-only
src/libraries/Common/src/Interop/Windows/Version/Interop.VerQueryValue.csMark Version interop as Windows-only
src/libraries/Common/src/Interop/Windows/Version/Interop.GetFileVersionInfoSizeEx.csMark Version interop as Windows-only
src/libraries/Common/src/Interop/Windows/Version/Interop.GetFileVersionInfoEx.csMark Version interop as Windows-only
src/libraries/Common/src/Interop/Windows/Version/Interop.FileVersionInfoType.csMark Version interop as Windows-only
src/libraries/Common/src/Interop/Windows/Version/Interop.FileVersionInfo.csMark Version interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.WndProc.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.WNDCLASS.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.Win32SystemColors.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.WaitForInputIdle.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.USEROBJECTFLAGS.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.UnregisterClass.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.TranslateMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SystemParametersInfo.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SetWindowLongPtr.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SetWindowLong.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SetTimer.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SetClassLongPtr.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SetClassLong.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SendMessageTimeout.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SendMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.RegisterWindowMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.RegisterClass.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.PostQuitMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.PostMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.MsgWaitForMultipleObjectsEx.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.MSG.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.MessageBeep.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.LoadString.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.KillTimer.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.IsWindowVisible.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.IsWindow.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.HIGHCONTRASTW.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetWindowThreadProcessId.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetWindowTextW.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetWindowTextLengthW.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetWindowLong.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetWindow.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetUserObjectInformation.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetSysColor.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetProcessWindowStation.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetKeyState.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetClassInfo.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.FindWindow.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.EnumWindows.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.DispatchMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.DestroyWindow.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.DefWindowProc.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.CreateWindowEx.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.Constants.csMark User32 constants as Windows-only
src/libraries/Common/src/Interop/Windows/Ucrtbase/Interop.MemAlloc.csMark ucrtbase interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/NegotiationInfoClass.csMark SspiCli helper as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.TokenSource.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.SSPI.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.SecurityLogonType.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.QuotaLimits.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.LsaLookupAuthenticationPackage.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.LsaLogonUser.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.LsaGetLogonSessionData.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.LsaFreeReturnBuffer.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.LsaDeregisterLogonProcess.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.LsaConnectUntrusted.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.KerbS4uLogin.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.KerbLogonSubmitType.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.AuthenticationPackageNames.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/Shell32/Interop.SHGetKnownFolderPath.csMark Shell32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Shell32/Interop.ShellExecuteExW.csMark Shell32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Secur32/Interop.LsaLogonProcessSafeHandle.csMark Secur32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Secur32/Interop.LsaFreeReturnBuffer.csMark Secur32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Secur32/Interop.LsaDeregisterLogonProcess.csMark Secur32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Secur32/Interop.LsaConnectUntrusted.csMark Secur32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Secur32/Interop.LsaCallAuthenticationPackage.csMark Secur32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Secur32/Interop.GetUserNameExW.csMark Secur32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/PerfCounter/Interop.PerformanceData.csMark PerfCounter interop as Windows-only
src/libraries/Common/src/Interop/Windows/Pdh/Interop.PdhFormatFromRawValue.csMark PDH interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.VariantClear.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.VariantChangeTypeEx.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.SysFreeString.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.SysAllocStringLen.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.SysAllocStringByteLen.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.SetErrorInfo.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.GetErrorInfo.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.PropVariantClear.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoUninitialize.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoTaskMemAlloc.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoInitializeEx.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoGetStandardMarshal.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoGetObjectContext.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoGetContextToken.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoGetApartmentType.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoCreateGuid.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CLSIDFromProgID.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.SYSTEM_PROCESS_INFORMATION.csMark NtDll interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.SYSTEM_LEAP_SECOND_INFORMATION.csMark NtDll interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.RtlNtStatusToDosError.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.RtlInitUnicodeString.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.RtlGetVersion.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.PROCESS_BASIC_INFORMATION.csMark NtDll interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.NtQuerySystemInformation.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.NtQueryInformationProcess.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.NtQueryInformationFile.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.NtQueryDirectoryFile.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.NtCreateFile.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.IO_STATUS_BLOCK.csMark NtDll interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.FILE_INFORMATION_CLASS.csMark NtDll interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.FILE_FULL_DIR_INFORMATION.csMark NtDll interop types as Windows-only
src/libraries/Common/src/Interop/Windows/Normaliz/Interop.Normalization.csMark Normaliz interop as Windows-only
src/libraries/Common/src/Interop/Windows/Normaliz/Interop.Idna.csMark Normaliz interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netutils/Interop.NetApiBufferFree.csMark Netutils interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.NetApiBufferFree.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.I_NetLogonControl2.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsRoleGetPrimaryDomainInformation.csMark Netapi32 types as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsRoleFreeMemory.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsGetSiteName.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsGetDcOpen.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsGetDcNext.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsGetDcName.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsGetDcClose.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsEnumerateDomainTrustsW.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DS_DOMAINTRUST_FLAG.csMark Netapi32 types as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DS_DOMAIN_TRUSTS.csMark Netapi32 types as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.UiPolicy.csMark NCrypt interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.SignVerify.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.Properties.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.NCryptOpenStorageProvider.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.NCryptFreeObject.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.NCryptDeriveSecretAgreement.csMark NCrypt interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.NCryptDeriveKeyMaterial.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.NCryptDecapsulateEncapsulate.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.NCryptBuffer.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.Keys.csMark NCrypt constants as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.ErrorCode.csMark NCrypt types as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.EncryptDecrypt.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.AsymmetricPaddingMode.csMark NCrypt types as Windows-only
src/libraries/Common/src/Interop/Windows/Mincore/Interop.WaitOnAddress.csMark Mincore interop as Windows-only
src/libraries/Common/src/Interop/Windows/Logoncli/Interop.DsGetDcName.csMark Logoncli interop as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.WriteFile_IntPtr.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.WaitCommEvent.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.VirtualQuery.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.Sleep.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.SetupComm.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.SetLastError.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.SetCommState.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.SetCommMask.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.SetCommBreak.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.ResumeThread.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.ReadFile_IntPtr.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.QueryPerformanceFrequency.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.QueryPerformanceCounter.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.PurgeComm.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GlobalMemoryStatusEx.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetUserDefaultLCID.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetTickCount64.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetThreadPriority.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetSystemTime.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetSystemInfo.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetStdHandle.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetProcessId.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetPriorityClass.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetNativeSystemInfo.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetLogicalDrives.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetLastError.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetEnvironmentStrings.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCurrentThread.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCurrentProcessorNumberEx.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCurrentProcessId.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCurrentProcess.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCPInfo.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetConsoleTitle.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetConsoleOutputCP.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetConsoleCP.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCommState.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCommProperties.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCommandLine.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.FreeLibrary.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.FreeEnvironmentStrings.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.FindClose.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.ExitProcess.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.EscapeCommFunction.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.CopyFile.csMark Kernel32 helper as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.CloseHandle.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.ClearCommBreak.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.Beep.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.NetworkInformation.csMark IpHlpApi interop as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.IP_ADDR_STRING.csMark IpHlpApi structs as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.ICMP.csMark IpHlpApi types/constants as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.GetNetworkParams.csMark IpHlpApi P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.FIXED_INFO.csMark IpHlpApi structs as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.ErrorCodes.csMark IpHlpApi constants as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.ConvertInterfaceNameToLuid.csMark IpHlpApi P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.ConvertInterfaceLuidToName.csMark IpHlpApi P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.ConvertInterfaceLuidToIndex.csMark IpHlpApi P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.ConvertInterfaceIndexToLuid.csMark IpHlpApi P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/HttpApi/Interop.HttpApi.csMark HttpApi interop as Windows-only
src/libraries/Common/src/Interop/Windows/HttpApi/Interop.ErrorCodes.csMark HttpApi constants as Windows-only
src/libraries/Common/src/Interop/Windows/Dsrole/Interop.DsRoleGetPrimaryDomainInformation.csMark Dsrole types as Windows-only
src/libraries/Common/src/Interop/Windows/Dsrole/Interop.DsRoleFreeMemory.csMark Dsrole P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Dnsapi/Interop.DnsTypes.csMark Dnsapi types as Windows-only
src/libraries/Common/src/Interop/Windows/Dnsapi/Interop.DnsApi.csMark Dnsapi interop as Windows-only
src/libraries/Common/src/Interop/Windows/CryptUI/Interop.CryptUIDlgCertificate.csMark CryptUI interop as Windows-only
src/libraries/Common/src/Interop/Windows/Crypt32/Interop.CryptEncodeObject.csMark Crypt32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Crypt32/Interop.CryptDecodeObject.csMark Crypt32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Credui/Interop.CredUIParseUserName.csMark Credui interop as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptVerifySignature.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptSignHash.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptSecretAgreement.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptGenRandom.GetRandomBytes.csFile-level CA1416 suppression for cross-platform RNG entrypoint
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptFinalizeKey.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptDuplicateHash.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptDestroySecret.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptDestroyKey.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptDestroyHash.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Authz/Interop.AuthzInitializeResourceManager.csMark Authz interop as Windows-only
src/libraries/Common/src/Interop/Windows/Authz/Interop.AuthzInitializeContextFromSid.csMark Authz interop as Windows-only
src/libraries/Common/src/Interop/Windows/Authz/Interop.AuthzGetInformationFromContext.csMark Authz interop as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.RegFlushKey.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.RegCloseKey.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.GetSecurityDescriptorLength.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.GetLengthSid.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.EventWriteString.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.EventUnregister.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.EventSetInformation.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.EventRegister.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.CryptEncrypt.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.CryptDecrypt.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.CryptCreateHash.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Activeds/Interop.FreeADsMem.csMark Activeds interop as Windows-only
src/libraries/Common/src/Interop/Windows/Activeds/Interop.ADsSetLastError.csMark Activeds interop as Windows-only
src/libraries/Common/src/Interop/Windows/Activeds/Interop.ADsOpenObject.csMark Activeds interop as Windows-only
src/libraries/Common/src/Interop/Windows/Activeds/Interop.ADsGetLastError.csMark Activeds interop as Windows-only
src/libraries/Common/src/Interop/Windows/Activeds/Interop.ADsEncodeBinaryData.csMark Activeds interop as Windows-only
src/coreclr/System.Private.CoreLib/src/Microsoft/Win32/OAVariantLib.csFile-level CA1416 suppression for Windows-only OLE Automation interop
src/coreclr/nativeaot/System.Private.CoreLib/src/System/Threading/Thread.NativeAot.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/coreclr/nativeaot/System.Private.CoreLib/src/System/Runtime/InteropServices/PInvokeMarshal.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/coreclr/nativeaot/System.Private.CoreLib/src/System/Environment.NativeAot.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/coreclr/nativeaot/System.Private.CoreLib/src/Internal/Runtime/FrozenObjectHeapManager.Windows.csFile-level CA1416 suppression for Windows-only interop usage
Comment threadsrc/libraries/Common/src/System/Threading/AsyncOverSyncWithIoCancellation.cs
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🔵 Needs a closer look
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Comment thread...eclr/nativeaot/System.Private.CoreLib/src/Internal/Runtime/CompilerHelpers/InteropHelpers.cs
#if TARGET_WINDOWS
 private static unsafe IntPtr GetProcAddressWithMangling(IntPtr hModule, byte* methodName, MethodFixupCell* pCell)
 {
#pragma warning disable CA1416 // Only reached on Windows via TARGET_WINDOWS.
@MichalStrehovskyMichalStrehovskyAug 31, 2026

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Why do we need suppressions like this? Is this a bug in the analyzer? Can you link the bug so we can delete these once the bug is fixed?
@pavelsavarapavelsavaraAug 31, 2026

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The platform neutral CoreLib is compiled with MSBuild TargetOS set to the same platform as the machine doing the compilation.

Therefore TargetsWindows is true.

Therefore #if TARGET_WINDOWS is true, not false.
As a consequence, platform neutral CoreLib has those calls included and we get the CA1416.
Any idea what to do with that would be appreciated.
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What is platform neutral corelib? Where/how do we build it and what's the purpose?
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sorry, "neutral corelib" is wrong angle. And maybe I'm confused about TargetsWindows values.
It's those Windows P/Invokes sit in the unconditionally-compiled part of CoreLib, so they land in every CoreLib flavor including browser.
The NLS/Normaliz declarations aren't under TargetsWindows at all — they're unconditional.
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This lets the wasm CoreCLR P/Invoke scan (PInvokeCollector) skip these declarations on browser/wasi — removing WASM0066 noise at the source — and makes them visible to CA1416 platform-compatibility analysis.
How are we ending up with these DllImports under WASM in the first place? I would have expect us not to compile these in the first place under WASM. And why Windows specifically and not macOS/Linux?
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How are we ending up with these DllImports under WASM in the first place?
Platform neutral CoreLib contains windows calls.
And why Windows specifically and not macOS/Linux?
I think we ship the runtime pack from windows machine.
This PR focuses on Windows only and I think we need to annotate OSX and Unix too (for consistency).
I just wanted to do that in a separate PRs.
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Annotate all DllImport/LibraryImport/UnmanagedCallersOnly with [SupportedOSPlatform]


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Annotate Windows interop declarations with [SupportedOSPlatform("windows")] by Copilot · Pull Request #132778 · dotnet/runtime · GitHub
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Annotate Windows interop declarations with [SupportedOSPlatform("windows")] - #132778
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Annotates the platform-specific DllImport / LibraryImport / UnmanagedCallersOnly declarations under src/libraries/Common/src/Interop/Windows/** with [SupportedOSPlatform("windows")], and annotates or gates their callers accordingly.
This lets the wasm CoreCLR P/Invoke scan (PInvokeCollector) skip these declarations on browser/wasi — removing WASM0066 noise at the source — and makes them visible to CA1416 platform-compatibility analysis.
Contributes to #132776
Scope
  • Windows interop only — all 38 modules under src/libraries/Common/src/Interop/Windows/. Unix/macOS interop is not part of this change.
  • The attribute is guarded with #if NET so the shared files still compile for netstandard/netfx consumers (e.g. TestUtilities on net481), where SupportedOSPlatformAttribute does not exist.
Approach
  • Declarations. Every Windows P/Invoke / UnmanagedCallersOnly declaration is annotated. Type-level (coarse) annotation is used on the Interop. partial class where safe; per-method annotation is used where a module's const/struct/enum members are consumed by cross-platform code — e.g. the public enums in System.Net.Primitives (SslProtocols, SocketError, …) whose values derive from Interop.SChannel.* / Interop.Winsock.* / Interop.Crypt32.* — so those members stay platform-neutral. Kernel32, Advapi32, Crypt32, BCrypt, and WinSock are per-method; the remaining modules are type-level.
  • Managed wrapper helpers. A helper that calls an annotated P/Invoke is itself annotated [SupportedOSPlatform("windows")] whenever all of its callers are Windows-only, rather than suppressing the warning with a pragma. A #pragma warning disable CA1416 is used only where the requirement cannot be expressed as an annotation: (1) Windows-only-compiled implementation files (*.Windows.cs) whose members are invoked by their cross-platform partial siblings, and (2) the few helpers whose managed entry point is genuinely cross-platform — Interop.GetRandomBytes (the platform-abstracted RNG) and Kernel32.GetMessage (reached through the portable Win32Marshal error path).
  • Callers. Cross-platform files in System.Private.CoreLib reach Windows-only interop only through compile-time gates (#if TARGET_WINDOWS, #if FEATURE_COMINTEROP, *.Windows.cs, *.Nls.cs) that CA1416 cannot observe; those files carry scoped or file-level suppressions where a Windows annotation would incorrectly propagate to portable code.
Validation
  • System.Private.CoreLib builds clean with no CA1416 diagnostics on Windows (CoreCLR and NativeAOT) and on browser/wasm.
  • Cross-platform consumers — System.Net.*, System.Security.Cryptography, System.Diagnostics.*, System.IO.*, System.Console, System.DirectoryServices.Protocols, and others — build clean across all target frameworks, including browser, wasi, unix, linux, osx, and android.
  • netstandard/net481 consumers of the shared interop build clean.
Note
This pull request was authored with GitHub Copilot.
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Annotate all DllImport/LibraryImport/UnmanagedCallersOnly with [SupportedOSPlatform]
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[WIP] Annotate DllImport/LibraryImport/UnmanagedCallersOnly with [SupportedOSPlatform]Research: scope [SupportedOSPlatform] annotation of interop declarationsAug 26, 2026
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Annotate NtDll interop with [SupportedOSPlatform("windows")]; guard C…
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Annotate User32/Crypt32 interop; use fully-qualified [SupportedOSPlat…
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…form] across modules
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Convert Crypt32 to method-level [SupportedOSPlatform] (consts consume…
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…d cross-platform)
@pavelsavara
Annotate no-coupling Windows interop modules with [SupportedOSPlatfor…
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…m] (coarse; method-level for WinSock)
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Annotate Ole32 interop (coarse) + guard cross-platform CoreLib callers
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Annotate OleAut32 interop (coarse) + guard cross-platform CoreLib cal…
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Annotate Normaliz interop (coarse) + guard Windows NLS CoreLib callers
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Annotate BCrypt interop method-level (consts consumed cross-platform)…
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Annotate Advapi32 interop method-level (structs/consts consumed cross…
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Annotate Kernel32 interop method-level (structs/consts consumed cross…
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Annotate IsGetConsoleModeCallSuccessful helper [SupportedOSPlatform] …
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Research: scope [SupportedOSPlatform] annotation of interop declarationsAnnotate Windows interop declarations with [SupportedOSPlatform("windows")]Aug 27, 2026
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Pull request overview
This PR broadly annotates Windows-specific interop declarations with [SupportedOSPlatform("windows")] and updates/gates callers (primarily via CA1416 suppressions in Windows-only or Windows-gated code) so platform-compatibility analysis and wasm P/Invoke scanning can correctly skip Windows-only entrypoints.
Changes:
  • Add [SupportedOSPlatform("windows")] annotations across Windows interop declarations under src/libraries/Common/src/Interop/Windows/** (and select other Windows-only declarations).
  • Add #pragma warning disable CA1416 (and a few scoped disable/restore blocks) in Windows-only or Windows-gated call sites across CoreLib/Common/NativeAOT.
  • Add/adjust a few Windows-only managed helpers / callbacks to carry platform annotations.
Reviewed changes
Copilot reviewed 300 out of 758 changed files in this pull request and generated 1 comment.
Show a summary per file
FileDescription
src/libraries/System.Private.CoreLib/src/System/TimeZoneInfo.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/WindowsThreadPool.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/WaitHandle.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/TimerQueue.WindowsThreadPool.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/ThreadPoolBoundHandle.WindowsThreadPool.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/Thread.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/Semaphore.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/RegisteredWaitHandle.WindowsThreadPool.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/PortableThreadPool.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/PortableThreadPool.IO.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/Mutex.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/LowLevelFutex.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Threading/EventWaitHandle.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Security/SecureString.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/MemoryFailPoint.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/RuntimeInformation.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/PosixSignalRegistration.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/NativeMemory.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/NativeLibrary.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/NativeLibrary.csScoped CA1416 suppression around TARGET_WINDOWS interop call
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/Marshal.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Runtime/InteropServices/Marshal.csScoped CA1416 suppression around TARGET_WINDOWS COM interop
src/libraries/System.Private.CoreLib/src/System/IO/Strategies/FileStreamHelpers.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/IO/RandomAccess.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/IO/PathHelper.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/IO/Path.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/IO/FileSystemInfo.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/IO/FileSystem.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/IO/Enumeration/FileSystemEnumerator.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/IO/Enumeration/FileSystemEntry.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/IO/DriveInfoInternal.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/IO/Directory.Windows.csFile-level CA1416 suppression for Windows implementation called by cross-platform partial
src/libraries/System.Private.CoreLib/src/System/Guid.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/TextInfo.Nls.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/Normalization.Nls.csFile-level CA1416 suppression for Windows-only NLS interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/IdnMapping.Nls.csFile-level CA1416 suppression for Windows-only NLS interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/CultureInfo.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/CultureData.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/CultureData.Nls.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/CompareInfo.Nls.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/CalendarData.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Globalization/CalendarData.Nls.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Environment.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/Environment.Variables.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Diagnostics/Tracing/RuntimeEventSourceHelper.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Diagnostics/Stopwatch.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/Diagnostics/DebugProvider.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/System/DateTime.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/libraries/System.Private.CoreLib/src/System/AppDomain.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/Microsoft/Win32/SafeHandles/SafeThreadPoolIOHandle.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Private.CoreLib/src/Microsoft/Win32/SafeHandles/SafeRegistryHandle.csFile-level CA1416 suppression for Windows-only registry interop usage
src/libraries/System.Private.CoreLib/src/Internal/Win32/RegistryKey.csFile-level CA1416 suppression for Windows-only registry interop usage
src/libraries/System.Private.CoreLib/src/Internal/Console.Windows.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/System.Net.NameResolution/src/System/Net/NameResolutionPal.Windows.csAdd SupportedOSPlatform to UnmanagedCallersOnly callback
src/libraries/System.Data.OleDb/src/UnsafeNativeMethods.COMWrappers.csAdd SupportedOSPlatform to Windows-only LibraryImport
src/libraries/Common/src/System/Threading/AsyncOverSyncWithIoCancellation.csAdd SupportedOSPlatform to Windows-only helper type
src/libraries/Common/src/System/IO/FileSystem.DirectoryCreation.Windows.csFile-level CA1416 suppression for Windows implementation invoked by cross-platform partial
src/libraries/Common/src/System/IO/FileSystem.Attributes.Windows.csFile-level CA1416 suppression for Windows implementation invoked by cross-platform partial
src/libraries/Common/src/Microsoft/Win32/SafeHandles/SafeTokenHandle.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/Common/src/Microsoft/Win32/SafeHandles/SafeThreadHandle.csFile-level CA1416 suppression for Windows-gated interop usage
src/libraries/Common/src/Interop/Windows/WtsApi32/Interop.WTSUnRegisterSessionNotification.csMark WtsApi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/WtsApi32/Interop.WTSRegisterSessionNotification.csMark WtsApi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/WtsApi32/Interop.Constants.csMark WtsApi32 constants as Windows-only
src/libraries/Common/src/Interop/Windows/Wldap32/Interop.Ldap.csMark Wldap32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Wldap32/Interop.Ber.csMark Wldap32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Wkscli/Interop.NetWkstaGetInfo.csMark Wkscli interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.WSARecv.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.WSAConnect.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.shutdown.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.sendto.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.send.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.recvfrom.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.recv.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.listen.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.getsockname.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.getpeername.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.gethostname.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.closesocket.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.bind.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinSock/Interop.accept.csMark Winsock P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutWrite.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutRestart.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutReset.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutPrepareHeader.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutPause.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutOpen.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutGetNumDevs.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutGetDevCaps.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.waveOutClose.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.PlaySound.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.MMSYSERR.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.mmioRead.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.mmioOpen.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.mmioDescend.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.mmioClose.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.mmioAscend.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinMm/Interop.MMCKINFO.csMark WinMM interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinHttp/Interop.winhttp.csMark WinHTTP interop as Windows-only
src/libraries/Common/src/Interop/Windows/WinHttp/Interop.winhttp_types.csMark WinHTTP types/constants as Windows-only
src/libraries/Common/src/Interop/Windows/WinHttp/Interop.SafeWinHttpHandle.csMark WinHTTP safe handle as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketSend.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketReceive.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketGetAction.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketEndServerHandshake.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketDeleteHandle.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketCreateServerHandle.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketCreateClientHandle.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketCompleteAction.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketBeginServerHandshake.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketBeginClientHandshake.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.WebSocketAbortHandle.csMark Windows WebSocket interop as Windows-only
src/libraries/Common/src/Interop/Windows/WebSocket/Interop.Structs.csMark Windows WebSocket structs as Windows-only
src/libraries/Common/src/Interop/Windows/Version/Interop.VSFixedFileInfo.csMark Version interop structs as Windows-only
src/libraries/Common/src/Interop/Windows/Version/Interop.VerQueryValue.csMark Version interop as Windows-only
src/libraries/Common/src/Interop/Windows/Version/Interop.GetFileVersionInfoSizeEx.csMark Version interop as Windows-only
src/libraries/Common/src/Interop/Windows/Version/Interop.GetFileVersionInfoEx.csMark Version interop as Windows-only
src/libraries/Common/src/Interop/Windows/Version/Interop.FileVersionInfoType.csMark Version interop as Windows-only
src/libraries/Common/src/Interop/Windows/Version/Interop.FileVersionInfo.csMark Version interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.WndProc.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.WNDCLASS.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.Win32SystemColors.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.WaitForInputIdle.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.USEROBJECTFLAGS.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.UnregisterClass.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.TranslateMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SystemParametersInfo.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SetWindowLongPtr.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SetWindowLong.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SetTimer.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SetClassLongPtr.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SetClassLong.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SendMessageTimeout.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.SendMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.RegisterWindowMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.RegisterClass.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.PostQuitMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.PostMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.MsgWaitForMultipleObjectsEx.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.MSG.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.MessageBeep.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.LoadString.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.KillTimer.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.IsWindowVisible.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.IsWindow.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.HIGHCONTRASTW.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetWindowThreadProcessId.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetWindowTextW.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetWindowTextLengthW.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetWindowLong.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetWindow.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetUserObjectInformation.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetSysColor.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetProcessWindowStation.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetKeyState.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.GetClassInfo.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.FindWindow.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.EnumWindows.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.DispatchMessage.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.DestroyWindow.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.DefWindowProc.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.CreateWindowEx.csMark User32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/User32/Interop.Constants.csMark User32 constants as Windows-only
src/libraries/Common/src/Interop/Windows/Ucrtbase/Interop.MemAlloc.csMark ucrtbase interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/NegotiationInfoClass.csMark SspiCli helper as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.TokenSource.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.SSPI.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.SecurityLogonType.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.QuotaLimits.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.LsaLookupAuthenticationPackage.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.LsaLogonUser.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.LsaGetLogonSessionData.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.LsaFreeReturnBuffer.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.LsaDeregisterLogonProcess.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.LsaConnectUntrusted.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.KerbS4uLogin.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.KerbLogonSubmitType.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/SspiCli/Interop.AuthenticationPackageNames.csMark SspiCli interop as Windows-only
src/libraries/Common/src/Interop/Windows/Shell32/Interop.SHGetKnownFolderPath.csMark Shell32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Shell32/Interop.ShellExecuteExW.csMark Shell32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Secur32/Interop.LsaLogonProcessSafeHandle.csMark Secur32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Secur32/Interop.LsaFreeReturnBuffer.csMark Secur32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Secur32/Interop.LsaDeregisterLogonProcess.csMark Secur32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Secur32/Interop.LsaConnectUntrusted.csMark Secur32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Secur32/Interop.LsaCallAuthenticationPackage.csMark Secur32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Secur32/Interop.GetUserNameExW.csMark Secur32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/PerfCounter/Interop.PerformanceData.csMark PerfCounter interop as Windows-only
src/libraries/Common/src/Interop/Windows/Pdh/Interop.PdhFormatFromRawValue.csMark PDH interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.VariantClear.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.VariantChangeTypeEx.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.SysFreeString.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.SysAllocStringLen.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.SysAllocStringByteLen.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.SetErrorInfo.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/OleAut32/Interop.GetErrorInfo.csMark OleAut32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.PropVariantClear.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoUninitialize.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoTaskMemAlloc.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoInitializeEx.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoGetStandardMarshal.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoGetObjectContext.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoGetContextToken.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoGetApartmentType.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CoCreateGuid.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Ole32/Interop.CLSIDFromProgID.csMark Ole32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.SYSTEM_PROCESS_INFORMATION.csMark NtDll interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.SYSTEM_LEAP_SECOND_INFORMATION.csMark NtDll interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.RtlNtStatusToDosError.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.RtlInitUnicodeString.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.RtlGetVersion.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.PROCESS_BASIC_INFORMATION.csMark NtDll interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.NtQuerySystemInformation.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.NtQueryInformationProcess.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.NtQueryInformationFile.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.NtQueryDirectoryFile.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.NtCreateFile.csMark NtDll interop as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.IO_STATUS_BLOCK.csMark NtDll interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.FILE_INFORMATION_CLASS.csMark NtDll interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NtDll/Interop.FILE_FULL_DIR_INFORMATION.csMark NtDll interop types as Windows-only
src/libraries/Common/src/Interop/Windows/Normaliz/Interop.Normalization.csMark Normaliz interop as Windows-only
src/libraries/Common/src/Interop/Windows/Normaliz/Interop.Idna.csMark Normaliz interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netutils/Interop.NetApiBufferFree.csMark Netutils interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.NetApiBufferFree.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.I_NetLogonControl2.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsRoleGetPrimaryDomainInformation.csMark Netapi32 types as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsRoleFreeMemory.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsGetSiteName.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsGetDcOpen.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsGetDcNext.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsGetDcName.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsGetDcClose.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DsEnumerateDomainTrustsW.csMark Netapi32 interop as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DS_DOMAINTRUST_FLAG.csMark Netapi32 types as Windows-only
src/libraries/Common/src/Interop/Windows/Netapi32/Interop.DS_DOMAIN_TRUSTS.csMark Netapi32 types as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.UiPolicy.csMark NCrypt interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.SignVerify.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.Properties.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.NCryptOpenStorageProvider.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.NCryptFreeObject.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.NCryptDeriveSecretAgreement.csMark NCrypt interop types as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.NCryptDeriveKeyMaterial.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.NCryptDecapsulateEncapsulate.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.NCryptBuffer.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.Keys.csMark NCrypt constants as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.ErrorCode.csMark NCrypt types as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.EncryptDecrypt.csMark NCrypt interop as Windows-only
src/libraries/Common/src/Interop/Windows/NCrypt/Interop.AsymmetricPaddingMode.csMark NCrypt types as Windows-only
src/libraries/Common/src/Interop/Windows/Mincore/Interop.WaitOnAddress.csMark Mincore interop as Windows-only
src/libraries/Common/src/Interop/Windows/Logoncli/Interop.DsGetDcName.csMark Logoncli interop as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.WriteFile_IntPtr.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.WaitCommEvent.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.VirtualQuery.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.Sleep.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.SetupComm.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.SetLastError.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.SetCommState.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.SetCommMask.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.SetCommBreak.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.ResumeThread.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.ReadFile_IntPtr.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.QueryPerformanceFrequency.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.QueryPerformanceCounter.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.PurgeComm.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GlobalMemoryStatusEx.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetUserDefaultLCID.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetTickCount64.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetThreadPriority.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetSystemTime.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetSystemInfo.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetStdHandle.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetProcessId.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetPriorityClass.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetNativeSystemInfo.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetLogicalDrives.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetLastError.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetEnvironmentStrings.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCurrentThread.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCurrentProcessorNumberEx.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCurrentProcessId.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCurrentProcess.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCPInfo.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetConsoleTitle.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetConsoleOutputCP.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetConsoleCP.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCommState.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCommProperties.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.GetCommandLine.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.FreeLibrary.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.FreeEnvironmentStrings.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.FindClose.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.ExitProcess.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.EscapeCommFunction.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.CopyFile.csMark Kernel32 helper as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.CloseHandle.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.ClearCommBreak.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Kernel32/Interop.Beep.csMark Kernel32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.NetworkInformation.csMark IpHlpApi interop as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.IP_ADDR_STRING.csMark IpHlpApi structs as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.ICMP.csMark IpHlpApi types/constants as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.GetNetworkParams.csMark IpHlpApi P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.FIXED_INFO.csMark IpHlpApi structs as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.ErrorCodes.csMark IpHlpApi constants as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.ConvertInterfaceNameToLuid.csMark IpHlpApi P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.ConvertInterfaceLuidToName.csMark IpHlpApi P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.ConvertInterfaceLuidToIndex.csMark IpHlpApi P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/IpHlpApi/Interop.ConvertInterfaceIndexToLuid.csMark IpHlpApi P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/HttpApi/Interop.HttpApi.csMark HttpApi interop as Windows-only
src/libraries/Common/src/Interop/Windows/HttpApi/Interop.ErrorCodes.csMark HttpApi constants as Windows-only
src/libraries/Common/src/Interop/Windows/Dsrole/Interop.DsRoleGetPrimaryDomainInformation.csMark Dsrole types as Windows-only
src/libraries/Common/src/Interop/Windows/Dsrole/Interop.DsRoleFreeMemory.csMark Dsrole P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Dnsapi/Interop.DnsTypes.csMark Dnsapi types as Windows-only
src/libraries/Common/src/Interop/Windows/Dnsapi/Interop.DnsApi.csMark Dnsapi interop as Windows-only
src/libraries/Common/src/Interop/Windows/CryptUI/Interop.CryptUIDlgCertificate.csMark CryptUI interop as Windows-only
src/libraries/Common/src/Interop/Windows/Crypt32/Interop.CryptEncodeObject.csMark Crypt32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Crypt32/Interop.CryptDecodeObject.csMark Crypt32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Credui/Interop.CredUIParseUserName.csMark Credui interop as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptVerifySignature.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptSignHash.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptSecretAgreement.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptGenRandom.GetRandomBytes.csFile-level CA1416 suppression for cross-platform RNG entrypoint
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptFinalizeKey.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptDuplicateHash.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptDestroySecret.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptDestroyKey.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/BCrypt/Interop.BCryptDestroyHash.csMark BCrypt P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Authz/Interop.AuthzInitializeResourceManager.csMark Authz interop as Windows-only
src/libraries/Common/src/Interop/Windows/Authz/Interop.AuthzInitializeContextFromSid.csMark Authz interop as Windows-only
src/libraries/Common/src/Interop/Windows/Authz/Interop.AuthzGetInformationFromContext.csMark Authz interop as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.RegFlushKey.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.RegCloseKey.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.GetSecurityDescriptorLength.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.GetLengthSid.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.EventWriteString.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.EventUnregister.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.EventSetInformation.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.EventRegister.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.CryptEncrypt.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.CryptDecrypt.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Advapi32/Interop.CryptCreateHash.csMark Advapi32 P/Invoke as Windows-only
src/libraries/Common/src/Interop/Windows/Activeds/Interop.FreeADsMem.csMark Activeds interop as Windows-only
src/libraries/Common/src/Interop/Windows/Activeds/Interop.ADsSetLastError.csMark Activeds interop as Windows-only
src/libraries/Common/src/Interop/Windows/Activeds/Interop.ADsOpenObject.csMark Activeds interop as Windows-only
src/libraries/Common/src/Interop/Windows/Activeds/Interop.ADsGetLastError.csMark Activeds interop as Windows-only
src/libraries/Common/src/Interop/Windows/Activeds/Interop.ADsEncodeBinaryData.csMark Activeds interop as Windows-only
src/coreclr/System.Private.CoreLib/src/Microsoft/Win32/OAVariantLib.csFile-level CA1416 suppression for Windows-only OLE Automation interop
src/coreclr/nativeaot/System.Private.CoreLib/src/System/Threading/Thread.NativeAot.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/coreclr/nativeaot/System.Private.CoreLib/src/System/Runtime/InteropServices/PInvokeMarshal.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/coreclr/nativeaot/System.Private.CoreLib/src/System/Environment.NativeAot.Windows.csFile-level CA1416 suppression for Windows-only interop usage
src/coreclr/nativeaot/System.Private.CoreLib/src/Internal/Runtime/FrozenObjectHeapManager.Windows.csFile-level CA1416 suppression for Windows-only interop usage
Comment threadsrc/libraries/Common/src/System/Threading/AsyncOverSyncWithIoCancellation.cs
@pavelsavara
Potential fix for pull request finding
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review requested due to automatic review settings
August 29, 2026 08:42
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🔵 Needs a closer look
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This was referenced Aug 29, 2026

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MichalStrehovsky
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Comment thread...eclr/nativeaot/System.Private.CoreLib/src/Internal/Runtime/CompilerHelpers/InteropHelpers.cs
#if TARGET_WINDOWS
 private static unsafe IntPtr GetProcAddressWithMangling(IntPtr hModule, byte* methodName, MethodFixupCell* pCell)
 {
#pragma warning disable CA1416 // Only reached on Windows via TARGET_WINDOWS.
@MichalStrehovskyMichalStrehovskyAug 31, 2026

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Why do we need suppressions like this? Is this a bug in the analyzer? Can you link the bug so we can delete these once the bug is fixed?
@pavelsavarapavelsavaraAug 31, 2026

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The platform neutral CoreLib is compiled with MSBuild TargetOS set to the same platform as the machine doing the compilation.

Therefore TargetsWindows is true.

Therefore #if TARGET_WINDOWS is true, not false.
As a consequence, platform neutral CoreLib has those calls included and we get the CA1416.
Any idea what to do with that would be appreciated.
@MichalStrehovskyMichalStrehovskyAug 31, 2026

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What is platform neutral corelib? Where/how do we build it and what's the purpose?
@pavelsavarapavelsavaraAug 31, 2026

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sorry, "neutral corelib" is wrong angle. And maybe I'm confused about TargetsWindows values.
It's those Windows P/Invokes sit in the unconditionally-compiled part of CoreLib, so they land in every CoreLib flavor including browser.
The NLS/Normaliz declarations aren't under TargetsWindows at all — they're unconditional.
@MichalStrehovsky
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This lets the wasm CoreCLR P/Invoke scan (PInvokeCollector) skip these declarations on browser/wasi — removing WASM0066 noise at the source — and makes them visible to CA1416 platform-compatibility analysis.
How are we ending up with these DllImports under WASM in the first place? I would have expect us not to compile these in the first place under WASM. And why Windows specifically and not macOS/Linux?
@pavelsavara
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How are we ending up with these DllImports under WASM in the first place?
Platform neutral CoreLib contains windows calls.
And why Windows specifically and not macOS/Linux?
I think we ship the runtime pack from windows machine.
This PR focuses on Windows only and I think we need to annotate OSX and Unix too (for consistency).
I just wanted to do that in a separate PRs.
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August 31, 2026 18:30
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Annotate all DllImport/LibraryImport/UnmanagedCallersOnly with [SupportedOSPlatform]


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