How can I force users on the netwoek to close a running application before they shutdown or log off the pc? The network is a windows 2000 active directory enabled with clients running windows xp. This has become quite important because we run a bespoke application that gets corrupted transactions because despite constant warnings users do not bother to close down the running application properly and just go to start --> shutdown. Is there a script or something that can do this??? Also to be able to display a warning message would be very helpful.