Software That Can Instantly Shut Stuff Off

[Wolfmight]

Is there any software that can shut down everything, but the bare essentials for windows xp to run stable.. then Shut off internet access 100%.. etc

Then you run the game without anything, but windows!

Somethin even better: There should be a resum button that memorised what was open, so it opens it all back up and resums the computer's state to what it was before from a saved file.

Pretty clever? Does it excist?

[muchspl2]

http://www.tburke.net/info/suptools/topics/kill.htm was something on suornova awhile back

[Wolfmight]

looks a little complicated.
Does it automaticly know what is needed for "xp" to continue running, whilst closeing everything+the internet connection so hackers cant get in.