DieSse, not entirely true, but mostly. They also have lots of Ads on their site as well. I have written a few programmes that I have given away, none of which are current now though, except for a UK Lottery Checker, which if anyone wants I will email it. Also you don't get any support from the publisher if anything goes wrong if you are using the FREE version. Although, having said that, I have had lots of support from JetAudio even though I am using their free version
Part of it could be benefiting the community (as it where) If they didn't offer free AV / firewalls then many people wouldn't bother and the situation would be a lot worse... make it free to home users and make corporates pay.