See my post #55. I use the old free version KPF 2.15, highly configurable and uses little resources.
Thanks for the info, Seabiscuit. I've been using ZA for a long time but notice performance declines sometimes and it seems to interfere with other software. I checked out KPF and wonder how you downloaded it? What do you recommend? I'd love to try a different firewall for awhile and see if performance improves. I bought a used laptop by Gateway and have ZA free installed. Would you recommend KPF for a laptop?