INT 2F - DR DOS 6.0 TaskMAX - REGISTER/UNREGISTER TASK MANAGER                  
	AX = 2704h
	DL = subfunction
	    00h unregister task manager
	    01h register task manager
Return: DL = status
	    00h registered
	    01h unregistered
Notes:	a task manager replaces TaskMAX's menu system with its own user
	  interface; while one is registered, the TaskMAX hotkeys and
	  Ctrl-Alt-Del invoke the manager rather than the built-in menu system
	unregister the task manager before terminating it
SeeAlso: AX=2705h
Index:	hotkeys;TaskMAX