We are getting:
Warning C4005 'HAVE_MEMMOVE': macro redefinition _elementtree c:\users\segev\prj\python\cpython\modules\expat\winconfig.h 34
Warning C4267 '=': conversion from 'size_t' to 'unsigned char', possible loss of data _elementtree c:\users\segev\prj\python\cpython\modules\expat\siphash.h 316
Warning C4996 'getenv': This function or variable may be unsafe. Consider using _dupenv_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details. _elementtree C:\Users\Segev\prj\python\cpython\Modules\expat\xmlparse.c 796
Warning C4005 'HAVE_MEMMOVE': macro redefinition _elementtree c:\users\segev\prj\python\cpython\modules\expat\winconfig.h 34
Warning C4005 'HAVE_MEMMOVE': macro redefinition _elementtree c:\users\segev\prj\python\cpython\modules\expat\winconfig.h 34
And in 64-bit:
c:\users\segev\prj\python\cpython\modules\expat\siphash.h(201): warning C4244: 'initializing': conversion from '__int64' to 'char', possible loss of data
I'm not sure how many Python versions this affects.