An Internet operator gives as a bonus free access to some third party sites. You only have to login on the operator's site and then use the given links to get to the other sites. New sites open in new windows, maybe as popups, I'm not quite sure about the technique used.

Now with ZA (free) the desired pages open allright on the new site, but the login information doesn't follow. If I try to go deeper in the site, it requires login, and of course doesn't accept the operator's login information.

When I shut down ZA and use Windows XP SP2 firewall instead, no such problem occurs. When logged in on the operator's site, automatic login is made on every co-operative site through hyperlinks. So the problem is apparently with ZA.

What can be done? I don't trust the Windows firewall that much, plus I like ZA more.

Operating System:Windows XP Home Edition
Product Name:ZoneAlarm (Free)
Software Version:6.0