I have some kind of worm or other malware that is redirecting my search engine searches on IE and Firefox to a number of different sites including "free-fast-answers.com." So I am trying to install SpyBot in an effort to resolve this issue since my Norton Security has not found any issues. I get all the way through the install until the last 200kb or so and the I get a program pop-up that says "internal error: Failed to expand shell folder constant "userappdata"." Any help would be appreciated.