That is spyware, and a difficult one to get rid of.   Here is a link I found thru a Google search http://www.computing.net/windows95/wwwboard/forum/158218.html

However, this is editing the registry.  What I would suggest you do is to go over to the virus/spyware board and repost this question in that forum if you  dont feel comfortable doing registry edits.  Kip