I know JD will like this as he just complained about it in the "Things I hate" thread. I suspect JR would like it too so the broadcast computer doesn't reboot in the middle of the night after a update.
It works in XP Pro, but not sure about XP home. You CAN control that little nagging "Reboot" notice you get after a Windows update. By default it will happily remind you every 10 minutes, which can drive you nuts if you are busy and trying to get something done. It can be changed. Here's how to set it . . . Goto:
Start -> Run Type: gpedit.msc
Expand the trail and work your way to: Local Computer Policy -> Computer Configuration -> Administrative Templates -> Windows Components -> Windows Update
In the Windows Update settings, look in the right pane for: Re-prompt for restart with scheduled installations Double click on that ^
On the Setting Tab active the "Enabled" radio button and enter a time (in minutes) for how often you would like a reminder. The maximum setting is 1440 or 24 hours.
You do have to reboot for this new setting to activate.