You may download the following to try to clean spy-ware and pop-ups from your computer...
Microsoft AntiSpyware BETA 1 (expires July 31, 2006, next update unknown) --BEST--
Spybot Search and Destroy v1.3
Be sure to "update" everytime you run the program.
Search your hard disk for so-called spybots or adbots, the modules that are responsible for showing ads and transmitting information back to vendors. If Spybot Search and Destroy finds such modules, it will remove them or replace them with empty dummies. In most cases, the host software still runs after removing the bot.
There are Plus and Professional versions for a fee that will not only scan and remove, but also BLOCK spy-ware from invading your system.
Spybot (PepiMK) - http://www.safer-networking.org/
Microsoft AntiSpyware BETA - http://www.microsoft.com/downloads/search.aspx?displaylang=en
Ad-Aware (Lavasoft) - http://www.lavasoft.de/