I switched to ZA from Outpost. Until the latest version of the PC Voice Module I had no problems.
Stil with firewalls, I've downloaded Skype, since my daughter is about to try it out, for comms with SWMBO.
When I boot up ZA asks me to permit Skype. At present I refuse access. The first day it didn't take no for an answer and asked a second time. Three days later and the number of requests has risen to five! Just doesn't like taking No for an answer.