FOR /r "C:\Program Files\Microsoft Visual Studio" %%G IN (*vcvars64.bat) DO (
    SET "_file=%%G"
    SET "_comp=%_file:\VC\=%"
    IF NOT "%_comp%" == "%_file%" Call "%_file%"
)

FOR /r "C:\Program Files\Microsoft Visual Studio" %%G IN (*vcvars64.bat) DO (
    SET "_file=%%G"
    SET "_comp=%_file:\VC\=%"
    IF NOT "%_comp%" == "%_file%" Call "%_file%"
)

FOR /r "C:\Program Files (x86)\Microsoft Visual Studio" %%G IN (*vcvars64.bat) DO (
    SET "_file=%%G"
    SET "_comp=%_file:\VC\=%"
    IF NOT "%_comp%" == "%_file%" Call "%_file%"
)

FOR /r "C:\Program Files (x86)\Microsoft Visual Studio" %%G IN (*vcvars64.bat) DO (
    SET "_file=%%G"
    SET "_comp=%_file:\VC\=%"
    IF NOT "%_comp%" == "%_file%" Call "%_file%"
)