I realize that some here are of the opinion that effective outbound protection on a Windows system is impossible and that all PFWs are useless. That aside...
I still see people recommending Sygate's PFW and Kerio 2.1.5. It doesn't seem prudent to me to use security software that hasn't been updated in a long time.
At approximately the same time (middle/end of 2005) Kerio was sold to Sunbelt, Sygate was sold to Symantec and development of some DiamondCS product(s) (ProcessGuard?) stopped.
Was some major flaw in these products disclosed at that time?
Given that any PFW is of value, is it wise to run PFWs that have long since been supported?