"vcvarsall.bat" freezes on new 1809-based Windows images

  • Are you sure the files that you try to run actually exist?

    Since it’s essentially a different system, need to rediscover what is available out of the box.

  • To debug a .bat file, you can replace @echo off at the start of it with @echo on.

    • Looking at the vcvarsall.bat on my system, you can also set VSCMD_DEBUG envvar to 3 to the same effect.