You should also download, and install this spyware/adware removing program. It's free and will remove all the spy type programs on your computer and other hidden advertising software. You should run it monthly. As you'll see it's very popular, 54 million downloads, and a 5 star rating from download.com:
http://www.download.com/3000-2144-10045910.html?part=69274&subj=dlpage&tag=button