strings are not convincing. For UCS2 (16-bit wchar_t type), use a dummy loop
instead of wmemcmp(). The dummy loop is as fast, or a little bit faster.

wchar_t is only 16-bit long on Windows. wmemcmp() is still used for 32-bit
wchar_t.

wmemcmp() is twice faster than a dummy loop (342 usec vs 744 usec) on Fedora
18/x86_64, GCC 4.7.2.

correctly check for errors on two CreateFileMapping calls.

for better WinRT compatibility.

Drop SDK version configuration for Tk compilation, to not bind it to W2k
anymore. Binding it to XP would conflict with Tk's own binding of tkMenu to W2k.

When converting REG_DWORD registry values into Python, the conversion
needs to be made from an *unsigned* long (k instead of i) to match the
DWORD type.

When converting REG_DWORD registry values into Python ints, the conversion
needs to be made from an *unsigned* long to match the DWORD type.

This fixes a ValueError seen in winreg.SetValueEx when passed long
winreg.REG_DWORD values that should be supported by the underlying API.

This fixes an OverflowError seen in winreg.SetValueEx when passed
winreg.REG_DWORD values that should be supported by the underlying API.

As stated in PEP 11, 3.4 removes code on Windows platforms where
COMSPEC points to command.com. The w9xpopen project in Visual Studio
was added to support that case, and there was a special case in subprocess
to cover that situation. This change removes the w9xpopen project from
the Visual Studio solution and removes any references to the w9xpopen
executable.

Patch by Serhiy Storchaka.

Patch by Václav Šmilauer.

Initial patch by Zachary Ware.

Patch by Zachary Ware.

Add version  guard for Py_LIMITED_API additions.
Issue #15081: Document PyState_FindModule.
Patch by Robin Schreiber.