Please add extsfns.h

[dpaoliello]

Related to adding debugger support (#462), please add extsfns.h: https://docs.microsoft.com/en-us/windows-hardware/drivers/ddi/extsfns/

This header allows a debugger extension to hook into the !analyze debugger extension.

[mikebattista]

Do you know what kit this comes from today? I don't see it in the SDK.

[dpaoliello]

Do you know what kit this comes from today? I don't see it in the SDK.

It comes with the Debuggers in the Windows SDK (on my local machine it's located at "C:\Program Files (x86)\Windows Kits\10\debuggers\inc\extsfns.h")

[mikebattista]

Ah. Thanks. I was looking under "Include" where everything else is including the other debugging related headers I added. Those seem to be duplicated in both places but extsfns.h is only under Debuggers.

[mikebattista]

@sotteson1 can we include this extsfns.h in our C++ SDK NuGet packages?

This is an outlier in that it's in the Debuggers folder not the Include folder so is not included in those packages today. We'd need to include this in the SDK packages before we can incorporate into the metadata.