Int 60 Fn 13 - 3com, 10net, Banyan Vines - Unlock [N] AH = 13h AL = drive number or 00h ES:SI = Ethernet address or 0000h:0000h DS:BX -> 31-byte ASCIZ semaphore name Return: AL = status (see also AH=11h) 01h semaphore not locked See Also: AH=11h,AH=12h