UPDATE: Ok, finally, we got it working; 2 steps to go:
1. Make sure windows firewall is not blocking
2. Open up the following ports on the router for the host ip: 2300-2400, 47624 and 6073. once for TCP once for UDP
Today, we got it running in LAN, Win7 64b, TCP/IP, 3 players, and everything worked just fine.
So after all, I can confirm that it is actually playable in LAN on Win 7.
Last edited by MoCo; 04-02-2014 at 10:44 AM.