Someone on the ISAserver.org Web boards (http://forums.isaserver.org) mentioned that he wasn’t sure how long he had left in his evaluation version. There’s no counter or countdown timer that I’m aware of, so there’s no easy way out. But if you can find out the data the ISA firewall trial software was installed, that would make it easy to figure out when your 120 days runs out.
You can find out when the ISA firewall software was installed by going to the Arrays-->Array Name-->Configuration-->Servers node. Then double click on the server name and click the General tab. There you will find the Created entry, which is the date the ISA firewall was installed.
Thomas W Shinder, M.D.
MVP -- ISA Firewalls