Há um Microsoft KB que mostra como isso pode ser feito, usando o screensaver winexit.scr (veja abaixo):
This step-by-step article describes how to automatically quit a user's running programs and to log the user off of a workstation after a specified time period.
How to Configure the Winexit.scr Screen Saver:
- Use Windows Explorer to locate the Winexit.scr file in the Windows 2000 Resource Kit folder on your hard disk.
- Right-click the Winexit.scr file, and then click Install.
- The Display Properties dialog box appears with the Screen Saver tab active. The Logoff Screen Saver entry is automatically selected. Click Settings.
- Select the Force application termination check box to force programs to quit.
- In the Countdown for n seconds box, type the number of seconds for which the logoff dialog box appears before the user is logged off.
- In the Logoff Message box, type the message that appears during the logoff countdown. Click OK.
- In the Display Properties dialog box, click Preview.
- You see the Auto Logoff dialog box. It displays the logoff message and the countdown timer. Click Cancel.
- Click OK.
Para evitar que você faça o download de todo o Windows 2000 Resource Kit , vá para petri.co.il e pegue o único arquivo zipado chamado Winexit de lá.