I've just bought Kasperky Antivirus, but when I tried to install it I got an error message saying that I'd have to remove my firewall (Zonealarm free) if I want to install it
I'd rather not buy (and then have to get used to using) a new firewall unless I have to, so I thought about just using XP's firewall, but I don't really know much about it, how does it compare to Zonealarm in terms of security etc?
