Shutdown utility

We're experiencing the following problem:

Shay is looking into modifying the code to trigger the shutdown after
X amount of time of user inactivity. This may increase the potential
that the shutdown code will be successful.

The issue we have now is that users don't properly shut down the
Citrix environment which is used to access the DB (they just close out
the window, and they fail to close out the Citrix desktop or the
database). When this happens, I think the back end connection is
disrupted, and the "isLoaded" function never runs on those (still)
active DB front ends.

If there is a chance that we can close out those inactive DB front
ends before users "close out" their citrix environs, then it will
decrease the potential for shutdown failure.

ANY IDEAS?