The Windows XP firewall included in the OS is only to make your machine stealth to invaders. But, it doesn't keep stuff inside your computer from getting out (i.e. viruses, trojans, etc.) So, it's recommended that you get a 3rd party firewall, like <A HREF="http://www.zonealarm.com" target="_new">ZoneAlarm</A> or <A HREF="http://www.tinysoftware.com" target="_new">Tiny Personal Firewall</A>, to keep applications from accessing the internet that you might not want to. (They're both free!)
This site's great for checking the security on your machine:
<A HREF="http://grc.com" target="_new">Steve Gibson's Shield's Up!</A>
I just downloaded and installed ZA Pro. I like it. I think it's user friendly, and not as cryptic as Tiny Personal Firewall. But, if you understand some of it, then TPF is smaller, uses a lighter footprint, and has still the same security.
Sorry to hear about that, but the majority of users I've seen haven't really had a problem with it. Morpheus and AudioGalaxy aren't really stable programs, so those are the reasons why I think ZA is freezing up on you. Uninstall, reboot, reinstall, reboot. See if that helps...
i'm using ZA pro under WXP pro, multiple users and no problems. friend has same setup only diff is the fool has realplayer installed, the thing had set it self up as default download manager and ZA pro did not want to work at all. a few uninstalls, reeboots, headscratching and trying to talk him out of using realplayer and the thing was running fine. can't remember the install sequence that finally worked.
Although it has a lot of good ideas, beer doesn't know anything about computers!!!