system
3
They dont need to act as server, only as client/access. Server means incomming connections not incomming data from which you have requested through client/access. Not allowing Server is like barring incomming calls on a mobile phone, you can still call out and listen to others but they cant call you.
I have nothing in zonealarm acting as server and everything works fine, IE, outlook, avast/windows updates, avast webshield etc.