Issues

• Align single-use enum storage with native uses and preserve width-sensitive enum contracts

  microsoft/win32metadata#2371 · Filter by author jevansaks opened on Oct 16, 2026

• GetConsoleKeyboardLayoutNameW/A is exported from kernel32, not user32

  microsoft/win32metadata#2370 · Filter by author Lexikos opened on Oct 15, 2026

• Ordinal-only (NONAME) exports can't be imported

  microsoft/win32metadata#2361 · Filter by author ChrisGuzak opened on Oct 12, 2026

• CreateMetaFileA/W return RAIIFree names DeleteMetaFile despite returning HDC

  microsoft/win32metadata#2358 · Filter by author jevansaks opened on Oct 7, 2026

• CreateEnhMetaFileA/W return RAIIFree names DeleteEnhMetaFile despite returning HDC

  microsoft/win32metadata#2359 · Filter by author jevansaks opened on Oct 7, 2026

• Mark WinHTTP buffers retained after return with Retained metadata

  microsoft/win32metadata#2357 · Filter by author jevansaks opened on Oct 7, 2026
  3

• GetMonitorInfo does not generate SetLastError = true

  microsoft/win32metadata#2351 · Filter by author lostmsu opened on Sep 25, 2026

• Add APPX_SIP_CLIENT_DATA, SIGNER_SIGN_EX2_PARAMS and SIGNER_SIGN_EX3_PARAMS for app package signing

  microsoft/win32metadata#2307 · Filter by author virzak opened on Sep 11, 2026

• NtCreateNamedPipeFile added to the Windows SDK

  microsoft/win32metadata#2302 · Filter by author kennykerr opened on Sep 9, 2026

• IShellLinkW::Resolve() requires CanReturnMultipleSuccessValues annotation.

  microsoft/win32metadata#2301 · Filter by author mjr4077au opened on Sep 4, 2026

• MSITRANSFORM_VALIDATE_LANGUAGE not emitting with [Flags] in CsWin32.

  microsoft/win32metadata#2297 · Filter by author mjr4077au opened on Aug 28, 2026

• IPersistFile.GetCurrentFile() requires CanReturnMultipleSuccessValues annotation.

  microsoft/win32metadata#2296 · Filter by author mjr4077au opened on Aug 28, 2026

• Make WinHttpReceiveResponse lpreserved "optional"

  microsoft/win32metadata#2282 · Filter by author Zerowalker opened on Aug 1, 2026

• WHV_UINT128 / WHV_REGISTER_VALUE missing 16-byte alignment (DECLSPEC_ALIGN(16) dropped) → WHP register calls fault

  microsoft/win32metadata#2278 · Filter by author EmJayGee opened on Jul 17, 2026

• Add RAII (CloseApi) annotation for PIDL types (ITEMIDLIST) so CsWin32 generates an ILFree SafeHandle

  microsoft/win32metadata#2275 · Filter by author antmor opened on Jul 11, 2026

• Update the win32metadata project to the latest AgilitySDK release

  microsoft/win32metadata#2269 · Filter by author henchhinglimbu opened on Jun 18, 2026

• Missing CreateVssBackupComponents

  question
  microsoft/win32metadata#2270 · Filter by author jamesvren opened on Jun 13, 2026
  2

• SupportedArchitectureAttribute inconsistency

  microsoft/win32metadata#2267 · Filter by author sinsi1998 opened on Jun 12, 2026

• Missing P/Invokes for publicly documented Dism methods like DismOpenSession, etc.

  bug
  microsoft/win32metadata#2265 · Filter by author mjr4077au opened on Jun 3, 2026
  5

• Ansi/Unicode attributes for constants

  microsoft/win32metadata#2255 · Filter by author sinsi1998 opened on May 5, 2026

• WIN32_FIND_DATAA issue with CfGetPlaceholderStateFromFindData and FindFirstFile

  bug
  microsoft/win32metadata#2252 · Filter by author catmanjan opened on Apr 30, 2026

• Add PF_ARM_V82_FHM and PF_ARM_V83_FCMA to PROCESSOR_FEATURE_ID / IsProcessorFeaturePresent

  microsoft/win32metadata#2250 · Filter by author lilith opened on Apr 30, 2026
  2

• E_NOTFOUND returns the infotech.h value instead of the Win32 error HRESULT

  bug
  microsoft/win32metadata#2251 · Filter by author jeremy-visionaid opened on Apr 29, 2026
  2

• EncodeRemotePointer/DecodeRemotePointer incorrectly point to api-ms-win-core-util-l1-1-1.dll

  microsoft/win32metadata#2249 · Filter by author riverar opened on Apr 28, 2026

• TSF APIs missing: EnumEnabledLayoutOrTip

  microsoft/win32metadata#2245 · Filter by author ahdung opened on Apr 17, 2026