INT 21 - Novell NetWare - TRANSACTION TRACKING SYSTEM - BEGIN TRANSACTION       
	AX = C700h
Return: CF clear if successful
	    AL = 00h
	CF set on error
	    AL = error code
		96h out of memory
		FEh implicit transaction already active, converted to explicit
		FFh explicit transaction already active
Note:	this function is supported by NetWare 4.0+ and Advanced NetWare 1.0+
SeeAlso: AX=C701h,AX=C702h,AX=C703h,AX=F222h/SF=01h