I have zone alarm version 7.0.337.000, and it is blocking my NTP from doing a time sync.
I go to the windows time menu and click on sync time now, and when it fails I look in my zone alarm log, and it show the NTP being blocked outgoing, but it does not list a program, just the IP addresses and ports.
I looked through my list of programs and anything that I though might be NTP was set to ask and not block outright.
I also tried adding both time.windows.com and time.nist.gov to my trusted zone, but that doesn't see to work either.
When I shutdown zone alarm, the time sync works.
Any advice on how to get it to work?

Operating System:Windows XP Home Edition
Software Version:7.0
Product Name:ZoneAlarm (Free)