Batch file call sub-batch file to pass n paramenters and return without use of file

Question

I looking for a way using windows batch file that call sub-batch file which pass 1-9 parameters and return value (string) without the need of saving the return value into fi

Answer 1

Small TIP

Setlocal EnableDelayedExpansion
IF 1==1 (
    CALL :LABEL
    echo 1: %errorlevel%
    echo 2: !errorlevel!
)
echo 3: %errorlevel%

:LABEL
EXIT /B 5

Output will be:

1: 0
2: 5
3: 5

EnableDelayedExpansion allows you to use !var_name! to expand var at execution time, rather then parse time.