INT 21 O - Novell NetWare, Alloy NTNX - LOG/LOCK PERSONAL FILE (FCBsee File Control Block)
	AH = CAh
	DS:DX -> FCBsee File Control Block (see #01345 at AH=0Fh)
	if function C6h lock mode 01h:
	    AL = log and lock flag
		00h log file only
		01h lock as well as log file
	    BP = lock timeout in timer ticks (1/18 sec)
Return: AL = error code
	    00h successful
	    96h no dynamic memory for file
	    FEh timeout
	    FFh failed
Desc:	provides file locking support for FCBs
Note:	this function was added in NetWare 4.0, but was removed some time prior
	  to Advanced NetWare 2.15, and is no longer listed in current Novell
	  documentation
SeeAlso: AH=CBh