Sound the fanfare because Windows XP Service Pack 3 has finally arrived. It is a 15+ MB download. And it installs in a Windows session. You may see one or two restarts though before things settle down to normal. Also you will get one of those nice boxes that tells you what will and will not work well if you upgrade. So installing this update should be fine if your AT is compatible, you aren’t running IE8 beta and you don’t have the ability to control your NAT routing. See how simple that is???
Okay it isn’t all that bad but you should read some of the articles out there on the update before you run it for yourself.
Windows XP SP3 Download Site
XP SP3 Release Notes Article From Ars Technica