Basically the first thing it shows you is a few start up programs you may wish to add to a list to shut off like msn messanger and a few others... it even asked for my avast anitvirus but you just click of that option. Once that settings done it will kick in everytime so need to keep doing it.
The next thing is you just click a button and you see a lot of the background services shut down, I dont think you have control over this ? from looking at them they do seem like ok to be switched off.
Then at the end of you gaming just remember to click the restore to normal option.
Yes it does run on Windows 7
thats it really very simple.
cheers
mrix