I regularly use all of these except stinger. If you regularly run these software solutions, they will significantly reduce your PC's volnerability to malware. I have only tried stinger once.

Push any button to read about that solution.

AVG

What Is Spybot?

Spybot is to be used regularly to cleanup spyware infestations. Do not depend upon just one anti-spyware solution. Use at least two on a regular basis. Allow the anti-spyware applications to update at least weekly.

Spybot - Search & Destroy can detect and remove spyware of different kinds from your computer. You will notice that this spyware prevention solution is primarily a cleanup solution.

It is best if you have this on a CD. You can download this free from Spybot - Search & Destroy.

Run SPYBOT