I am running on Windows 2000 Server with Active Directory setup. I have Win95, Win98, and Win2000 Clients. I am trying to solve an issue with the same user logging onto more than one computer. All I want to do is, when a user logs on, my script will check to see if the username is being used anywhere else. If it is, the system will logoff and require a new logon. Does anyone have any suggestions?

Thanks in advance.
Randy