How we did it
Since we just could not convince people to leave their systems on overnight, we added it to the login script to fire once a month, just after end-of-month billing should be completed. Yes, it made the boot sequence ridiculously long, but since they wouldn't leave the systems on like we asked them to ...
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Microsoft offers them the one thing most business people will pay any price for - the ability to say "we had no choice - everyone's doing it that way." -- [link|http://z.iwethey.org/forums/render/content/show?contentid=38978|Andrew Grygus]