https://bugs.winehq.org/show_bug.cgi?id=42474
--- Comment #11 from Gijs Vermeulen acescopezz@gmail.com --- (In reply to Sebastian Ernst from comment #10)
@Austin English: How can I test this patch? I just tested both Wine 2.6 and Wine Staging 2.6 against CPython 3.6.1 with Windows Version set to XP, 7 and 10. No difference / no luck.
(However, I just figured out that CPython 3.5.3 does not require "PathCchCombineEx" and therefore runs.)
The patch he was talking about was an update of the .spec file for kernelbase.dll. It use somewhat related to this bug, but does not fix it.