anchor.diff:  :Usage
   echo.
   echo Usage:
  -echo %0 BuildArch BuildType where:
  +echo %0 BuildType where:
   echo.
  -echo BuildArch can be: x64
   echo BuildType can be: Debug, Release
   exit /b 1
  
positive.code: :Arg_Loop
  if "%1" == "" goto ArgsDone
  if /i "%1" == "/?" goto Usage
  if /i "%1" == "x64"    (set __BuildArch=x64&&shift&goto Arg_Loop)
  
  if /i "%1" == "Debug"    (set __BuildType=Debug&shift&goto Arg_Loop)
  if /i "%1" == "Release"   (set __BuildType=Release&shift&goto Arg_Loop)
  
negative.code: @echo off
  
  :: 32-bit builds not supported as they have not been tested.
  set __BuildArch=x64
  set __BuildType=Debug
  
  