No, it's people that are too lame to open a port in their firewall and/or people who run windows and have a fear of everything on the net because billy gates won't fix all the security leaks.
You run a firewall out of fear right? You don't know where all those viruses come from so you throw out the baby with the bathwater. You keep the viruses alive by paying virus scanning companies $$, they now have no reason to stop them because now it's their livelyhood.
The viruses come from OUTLOOK EXPRESS and dumb arses at microsoft that think it's cool for a email program and a word processor to have macro commands that are programmable to the point of trashing your computer.
The idea that programs can start up from a "registry" is even more stupid. Get a real OS and see what it's like to have a real computer working for you.