anchor.diff:  
   if "%1" == "pgo"       shift && set PGO=1&&                          goto PARSE_CMD_LINE
   if "%1" == "tmp"       shift && set KEEP_TMP=1&&                     goto PARSE_CMD_LINE
  +if "%1" == "2015"      shift && set VS_COMN_TOOLS=%VS140COMNTOOLS%&& goto PARSE_CMD_LINE
  +if "%1" == "2013"      shift && set VS_COMN_TOOLS=%VS120COMNTOOLS%&& goto PARSE_CMD_LINE
   if "%1" == "2012"      shift && set VS_COMN_TOOLS=%VS110COMNTOOLS%&& goto PARSE_CMD_LINE
   if "%1" == "2010"      shift && set VS_COMN_TOOLS=%VS100COMNTOOLS%&& goto PARSE_CMD_LINE
   if "%1" == "2008"      shift && set VS_COMN_TOOLS=%VS90COMNTOOLS%&&  goto PARSE_CMD_LINE
  
positive.code: echo ======================================== [ %1 ]
  if not exist %~n1.*in %1
  if     exist %~n1.*in for %%i in (%~n1.*in) do echo. && echo ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ { "%%i" } && type "%%i" && echo. && echo ---------------------------------------- && %1 < "%%i"
  goto END
  
  :CHECK :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
  
negative.code: 
  rem Detect most recent version of the Visual C++ installed :::::::::::::::::::::
  
  if not "%VS140COMNTOOLS%" == "" set VS_COMN_TOOLS=%VS140COMNTOOLS%&& goto PROCEED
  if not "%VS120COMNTOOLS%" == "" set VS_COMN_TOOLS=%VS120COMNTOOLS%&& goto PROCEED
  if not "%VS110COMNTOOLS%" == "" set VS_COMN_TOOLS=%VS110COMNTOOLS%&& goto PROCEED
  if not "%VS100COMNTOOLS%" == "" set VS_COMN_TOOLS=%VS100COMNTOOLS%&& goto PROCEED
  if not "%VS90COMNTOOLS%"  == "" set VS_COMN_TOOLS=%VS90COMNTOOLS%&&  goto PROCEED
  