what do you mean ?
tweak your windows XP ?
nothing wrong with pimping XP...lol
Neither Ars Technica, nor the author of this article, will be responsible for any damage you do to your computer by following the steps outlined herein. You have been warned.
You never know when you're going to notice a difference. In my experience, it never has made much of a difference really. A lot of these settings you will find are already set, and only need to be reset when an annoying piece of software messes with registry keys it shouldn't.