INT 60 - 3com, 10NET, Banyan VINES - LOCK                                       
	AH = 12h
	AL = drive number or 00h
	ES:SI = Ethernet address or 0000h:0000h
	DS:BX -> 31-byte ASCIZA NUL-terminated ASCII string.	The ASCIZ string "ABC" consists of the four bytes 41h, 42h, 43h, and 00h.  Unless otherwise specified, maximum lengths given in the interrupt list do not include the terminating NUL. semaphore name
Return: AL = status (see also #03314)
	    01h semaphore currently locked by another PCIBM PC
Note:	unlike function 11h, this function returns immediately
SeeAlso: AH=11h,AH=13h