Stop a Z and I Emulator for Windows Session

The command PCOMSTOP has the following parameters:

Session letter of session to stop. The syntax is /s=session-letter. This is optional. If omitted, the first available session letter is used.
Stops all sessions
Stops all or specific session without confirmation, even if the confirmation on exit or exit all option are set.
Quiet mode. In quiet mode, PCOMSTOP does not write any messages to stdout.
Displays help information.