Int 7F/AH=42h

AH = 42h
AL = user ID
DS:DX -> ASCIZ semaphore name

Return:
AL = status
00h successful
01h invalid function
03h unable to unlock semaphore

See Also: AH=02h - AH=41h"MW386" - AH=42h"NTNX"

Category: Network - Int 7Fh - A