It is a limited feature version of Kaspersky. I tried it but didn't like it. It was kind of screwy, I had it put an infection in quarantine. Everytime the real-time scanner checked the quarantine it warned me there was an infection in quarantine. I never heard of a real-time scanner checking the quarantine chest before. It turned out to be a false positive. It confirmed avast! did a good job. (I didn't have avast! & AOL AVS on my computer at the same time, just that avast! was on my system first.)