DataTarget.CreateSnapshotAndAttach error: Unable to find an entry point named 'PssCaptureSnapshot' in DLL 'kernel32.dll'

[R4ND3LL]

This line of code produces the error below:
var target = DataTarget.CreateSnapshotAndAttach(Process.GetCurrentProcess().Id);

System.EntryPointNotFoundException: Unable to find an entry point named 'PssCaptureSnapshot' in DLL 'kernel32.dll'.

       at Microsoft.Diagnostics.Runtime.WindowsProcessDataReader.PssCaptureSnapshot(IntPtr ProcessHandle, PSS_CAPTURE_FLAGS CaptureFlags, Int32 ThreadContextFlags, IntPtr& SnapshotHandle)
   at Microsoft.Diagnostics.Runtime.WindowsProcessDataReader..ctor(Int32 processId, WindowsProcessDataReaderMode mode)
   at Microsoft.Diagnostics.Runtime.DataTarget.CreateSnapshotAndAttach(Int32 processId)
   at ServerAdminPlugin.StackTraceAnalyzer.GetAllStackTraces()

Environment: .NET 5 app running on Windows Server 2008 R2 Standard, with, among other things, latest .NET 5 SDK installed. Same error happens on .NetFramework 4.8 app running on Windows Server 2008.

Same code works on dev machine (Win 10).

End result is this terminates the app, even though it's wrapped in try-catch.

[R4ND3LL]

I may have answered my own question. Microsoft states that this function is only supported on:

Minimum supported client	Windows 8.1 [desktop apps only]
Minimum supported server	Windows Server 2012 R2 [desktop apps only]

Researching elsewhere, I found this function was only included on kernel32.dll version 6.3+.

Would be nice if this was noted somewhere in the docs around CreateSnapshotAndAttach use on Windows.

[liudonghua123]

I encountered the same problems when back port cpython 3.12 to windows 7, and I rewrite the usage of PssCaptureSnapshot.

See liudonghua123/windows-python-installer@d1ad543, https://github.com/adang1345/PythonWin7/blob/master/patches/restore-win7-handling.patch.