If you want to remove the Shutdown Event Tracker, the new Windows 2003 Server feature, and don't want to document the shutdowns in Event Logs especially in a testing environment, you can easily disable this feature in the Local Computer Policy MMC. This console is not in the Administrative tools by default, so you have to create it:

1. Open a blank MMC console by typing mmc from the command line.

2. From the empty console, click the File menu and select Add/Remove Snap-in or press Ctrl+M.

3. From the Add/Remove Snap-in page, click Add or Alt+D, choose Group Policy, select Local Computer and click Finish.

4. From the Add Standalone Snap-in page, click Close. From the Add/Remove Snap-in page, click OK.

5. Expand Local Computer Policy -> Computer -> Configuration -> Administrative Templates -> System and in the right pane locate Display Shutdown Event Tracker.

6. Double-click the Display Shutdown Event Tracker and select Enabled. Change the drop-down selector to Never.

7. Click OK to accept the policy change. Close the MMC console, saving it if prompted to so.