Computer Learning

[j.c.]

you have to be very careful deleting .dll's Some are required for your pc to run. That said... you can try deleting it in safe mode. Have you tried a system restore?
You might be best off running the "hijack this" and posting your results in their forum for the experts to guide you. I don't have the URL handy... do a search for hijack this or get it from one of the previous links.