[3.6] bpo-30470: Deprecate invalid ctypes call protection on Windows. (GH-1810) (GH-1833)

Calling Ctypes functions is deprecated in 3.6.2 and will be removed in 3.7.
(cherry picked from commit f931fd1c2ad969db72460d3ab41e3d1a4a62c371)
1 file changed