If you are you sick of not getting all the stuff from MS because of your illegal XP Pro then this is your solution.Now you can get all updates, hotfixes and things like IE Explorer.
You can use two options. a reg file and a exe tool.
For a reg fie see this topic.
First download the file from above.Extract and run the keyfinder.exe. From menu, select to change your key.
Now put this key:
This key is a so called student key, which normally is licensed for "students". By using this key, your XP Pro will be "legal" in the eyes of MS. After changing your key, run Microsoft Genuine Advantage Diagnostic Tool.exe and see if your windows are legal.