Wow I have the EXACT same problem as you guys. I got a Dimension C521 from dell with windows vista and MacAfee security center and it shows that gay error message. I too have completely given up and I need to have virus protection so I'm not going to uninstall it. Is there an alternate sharing program that may work with Vista? Is there going to be another version of limewire that will work on Vista? I have my own thread labeled "Limewire not connecting due to MacAfee firewall" if anyone wants to look at all the details...

BTW what affect will removing my firewall and all the stuff that Nielsee said he removed have? Will I still be protected? How do I remove just the firewall and what not?