Updated.

bin/env_windows.txt

@@ -1,10 +1,10 @@
 'Use msvc 2017 community edition (mainly for x64 support, but it's also the latest/greatest).
 '
-MX2_USE_MSVC=0
+MX2_USE_MSVC=1
 
 'Build architecture: x86 or x64, x64 only working with msvc.
 '
-MX2_ARCH_WINDOWS=x86
+MX2_ARCH_WINDOWS=x64
 
 'Semi-colon separated list of module root dirs, relative to MX2_HOME or absolute.
 '