BlackICE is a program created by ISS...Network ICE. It is the best personal firewall available...I only recommend that you set it on periniod because there is no reason not to. Anyone, if you have tried or are trying BlackICE or ICECAP please, comment on this thread about it becuase I would like to know other people's experiences with it. My company uses BleckICE with ICECAP as do I and we have gotten wonderous support from them and it is the best product that I know of! All who have not tried it, I HIGHLY ENCOURAGE YOU TOO!