A good page to browse each day is the free licensed software page http://www.giveawayfotheday.com/

Yesterday they listed Defense Wall HIPS, which is "a strong barrier between you and malicious software (spyware, adware, keyloggers, rootkits and viruses". Usually priced at $29.95 it was free that day.

People's published opinions were mostly about the lack of free signature updates. I chose Spyware Terminator that is completely free and updates its signatures daily. They claim there are more than 10 million user installations.

The url? http://www.spywareterminator.com/

It's about 7.75 Mbytes

TrevorF