I too had a hard time in removing (and reinstalling - in this case - Daemon Tools) the SPTD driver from my win XP machine.
This procedure is based on several help/suggestion pages found on the internet.
Since I can not upload the RTF document, I have posted it here: "...filefactory.com /file /9442fb". (remove spaces
Since this file will not stay there for ever, I'd like to ask anyone with upload rights to upload it to this site for permanent availability.