I couldn't understand the question very clearly but
call is the command that comes to my mind. It is an internal command being a feature of
cmd.exe as external commands exist as separate executable files, usually in
call command executes other batch files (with
.bat extension) within the calling script and may pass arguments to that external executable file assigned as to its parameters.
Moreover, call command may
label (defined as
:MyLabel inside the batch file, and otherwisely intended and working with
GOTO command as points or sections in a batch file to switch the execution to, which is an old and might also be a wrong feature) within the script itself without referring to any external batch file.
The command is well documented in an SS64 page, and it's main difference from just calling the other script or executable file without any using any command, say as
MyExecutable.exe is that it doesn't leave and exit the current script when calling or upon the external script's finishing, keeping it in the current session, and comes back to and continues executing the calling script's following lines, where the call is originated from.