Windows: Whether you’re downloading something or streaming media to your smartphone, sometimes you have to leave your computer on while you’re out. Instead of leaving it on all day, free utility software will schedule shutdowns by time, CPU usage, or remotely. for more information visit http://www.geria.net/2010/07/05/shut-down-restart-your-pc-from-anywhere/

I have also seen that kind of software but can't remember the name. Anyway, it's good coz you can shutdown your pc anywhere.

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