There are various open source spyware removal programs that can be downloaded online. They can be used to either scan or detect malicious files that are already installed within the computer and remove them; and they can also be used to block incoming spyware files. Popular Spyware Removal Programs include Ad-Aware SE 6, SpySubtract PRO, Spyware Doctor, Aluria’s Spyware Eliminator, Spybot – Search and Destroy and Bazooka Spyware Removal.All of these programs are designed specifically to eliminate spyware files from your computer. When finding the right programs, you must consider the kind of protection that you need. Will you want something that can help you detect spyware malicious files? Will you need something that will help you block them? Or would you settle for something that can give the additional function of being able to remove or delete them from your system? Since all of mentioned programs are created differently, one single program may not be able to deliver to all of the said functions. So you can also consider having at least two programs running to protect you better.