How might one cancel a (V2 Netware client) ADSM restore session?

A quick look around the docs didn't show anything, and to start to
unload the NLM gives a dire warning about possibly crashing the
Netware server.

I have cancelled the session (and one that started when I cancelled
the 1st) and their tape mount requests at the ADSM server, but would
like
the users to be more independent (as would they!).

Ideas?  Thanks!

Wayne T. Smith                             mailto:wts AT Maine DOT edu
Systems Group - UNET                 University of Maine System