INT 21 - Novell NetWare - TRANSACTION TRACKING SYSTEM - ABORT TRANSACTION       
	AX = C703h
Return: CF clear if successful
	    AL = 00h
	CF set on error
	    AL = error code (FDh-FFh) (see #01809)
Note:	this function is supported by NetWare 4.0+ and Advanced NetWare 1.0+
SeeAlso: AX=C700h"NetWare",AX=C701h,AX=C704h,AX=F222h/SF=03h