Force a daily reboot

We have approx. 120 end-user workstations running XP Service pack 2.  Windows 2003 Active Directory environment.

We would like to force periodic restarts of all user PC's, after-hours.  However, we have some users (Hotel Front Desk, Security) who might be using their machines at any time 24/7.

We are looking for a way to force a restart at 4am, IF the machine has not been restarted in the prior 24 hours, AND allow the user to abort the restart easily if he or she cannot tolerate the downtime.  (Which should be rare.)
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Rob WilliamsCommented:
Sysinternals/Microsoft's free PSShutDown allows you to remotely force a reboot of all PC's or a list of PC's with the option of displaying a message and an option to abort. You could create a single line batch file with your psshutdown.... command, and then just create scheduled task on the server to run the batch file. It works very well.

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Rob WilliamsCommented:
ps- one note, make sure the delay time you set to allow the user to abort the shut down is long enough in case they are away from their desk.
Hey RobWill!  

As usual, he is dead on.  That was the suggestion I had.  Just make sure that whatever account is going to run the scheduled task has permissions to that workstation.
Rob WilliamsCommented:
Hi samiam41 !!
I won't try to hijack his question but I saw you were on this one and knew if I hung around, I would learn a thing or three.  I'll drop some more posts once you wrap this up.
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