You could try DX Eradicator - here :
http://www.voodoofiles.com/3117&e=9901
Its a freeware utility. I have recommended to other people on other tech forums I post at, they have reported it worked - but I have never used it myself.
Read any read me that accompanies the utility and set a System Restore Point in XP so you have a clean booting registry - in the event you encounter a problem.
Let us know how you get on.
Linear Mode
