Are they the same? I had ZA on my computer, and now Road Runner is "giving away" CA's EZ-Firewall, so I loaded it on my home computer. Told me to uninstall ZA first, so I did. All seems to be running well, but I decided to make sure ZA was completely uninstalled, and found many "ZA" references in the CA folders. Since it looks so similar, I assume it is "the same", and I shouldn't be deleting any ZA files.