Spyware as big a problem as viruses

Spyware is as big a problem as viruses and needs similar scanning software to prevent it from slowing down your computer. I recommend SpyBot S&D from Kolla and Ad-Aware from Lavasoft. Both of these programs are equally good at clearing spyware from your machine.
Ad-aware can be downloaded from Lavasoft
SpyBot can be downloaded from Safer-Networking