Yesterday I switched from ZoneAlarm to Kerio as my personall firewall. Although I’m not sure if my findings will apply to someone without any knowledge of how tcp-filtering works, but I like KPF more than ZA. It seems to detect more, it starts BEFORE Windows starts (ZA starts after you login), and it does not seem to slow down my system as much. Furthermore, it works with Azureus, the Bittorrent-client (with embedded tracker) I use. No more ZoneAlarm for me.
Jul 092005