Hi Paul,

>You can buy UPS's that have a serial interface on them to notify the server to shutdown. Shutting down the app via a file triggered by this should be a decent solution to the problem.

Have you tested this approach? What do you do with a "slow" user that works to the last second? If the server UPS is ready to go down, it will just close files and be done with it. What happens to your data in this case? I am talking native files here.