BIOS / Int / Int 6F / 0C

                      INT 6F - 10-NET - UNLOCK SEMAPHORE

Input			Output
AX	0Ch	Drive Number/0		Status	AX
BX					BX
CX					CX
ES:SI	Ethernet address or 0				DX
DS:DX	31 byte ASCIIZ semaphore name				CF

Status:         See function 0Bh, except
                1 = Semaphore not locked

Note:           Same as INT 60/AH=13h