When trying to remove WebCake.BHO using SpyBot - S&D, I get the message "Problem couldn't be fixed; the reason could be that the associated files are still in use ...etc. May Spybot - S&D run on your next system startup?".

If I choose yes, then the next time I reboot the PC, SpyBot - S&D runs but comes up with the same message. I am running in Administrator mode. Is there a procedure other than the manual process for removing WebCake.BHO?
Thanks
Frank Jackson