Ok, first of all, sorry if this comes across as hijacking brightness' thread. I'd start one of my own, but I just saw that a previous thread about the conflict between Comodo and Avast got locked in favour of this one.
I'm somewhat of a noob when it comes to computer security, but what I've read in this thread and others, including on the Avast forums, has me worried. Basically, I'm just looking for some kind of clarification as to what's going on. I've read the relevant threads, including this one, and I'm still confused. I've seen people seeming to say Avast's webshield can stop Comodo's firewall from working, leaving my computer exposed to attack, and also that AvastSvc.exe can create a loophole in the firewall?
I'm currently running Windows XP with Avast! Free Antivirus 7 and Comodo 5.9.221665.2197 (including Defense+). I currently have webshield running. I also checked what applications Comodo's set to allow through, by going to Firewall -> Network Security policy -> Application Rules tab, and there's nothing there about AvastSvc.exe. However, avast.setup is set to "Allow IP Out From MAC Any To MAC Any Where Protocol Is Any", whatever that means.
Basically, my question is: how secure is my PC at the moment, and what can I set Comodo and Avast to, to make it as secure as possible? Sorry if this comes across as a stupid question; like I said, I don't really know much about this sort of thing, and I'm just trying to get some sort of clarification.