INT 60 - 3com, 10NET, Banyan VINES - LOCK AND WAIT
        AH = 11h
        AL = drive number or 0
        DX = number of seconds to wait
        ES:SI = Ethernet address or 0
        DS:BX -> 31-byte ASCIZ semaphore name
Return: AL = status (see below)
SeeAlso: AH=12h,AH=13h

Values for status:
 00h    successful
 01h    timeout
 02h    server not responding
 03h    invalid semaphore name
 04h    semaphore list is full
 05h    invalid drive ID
 06h    invalid Ethernet address
 07h    not logged in
 08h    write to network failed
 09h    semaphore already logged for this CPU

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