... ECHO ÿ ßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßßß if A%1 == A GOTO :SINTAX if NOT EXIST %1.prg GOTO :NOEXIST @set oldpath=%path% @set oldinclude=%include% @set oldlib=%lib% @set oldlibpath=%libpath% if exist "%ProgramFiles%\Microsoft Visual Studio ...