[issue4566] 2.6.1 breaks many applications that embed Python on Windows

[Martin v. Löwis]

Martin v. Löwis <martin at v.loewis.de> added the comment:

I haven't been able to try this patch myself yet, but I see a potential
problem:  the "cookie" variable is declared as a DWORD, while
ActivateActCtx expects a ULONG_PTR. DWORD and ULONG_PTR are only the
same thing in 32-bit Windows.

Also, where are you seeing that these SxS functions are "Vista or
later"?  My XP kernel32.dll has all of them.  MSDN says they're XP or Vista.

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