Not just Zonealarm?
The update has already been widely reported in tech forums to screw up Zonealarm. I use this on my home PC, and spent some time trying to figure out how to get back on - including talking with my ISP tech support. Worryingly, even after an msconfig to do a clean start-up, I couldn't even browse with Windows Firewall on until I started and then shut down Zonealarm.
And even more worringly seemingly turning off Windows Firewall first for a moment made no difference.
Watch this space, I fear.
Biting the hand that feeds IT
