How to configure a specific port for gaming. I have installed multiplayer games in my office. Now when I run the game or tries to scan for the servers firewall blocks them. I don't want to disable my firewall because that will hamper my security. But if there is no way then I have to do that also. I need some steps for doing. This is not for LAN but also for online gaming servers. Please show me appropriate way in case of open port. All the PC on internet have Windows Vista. Thanks in advance.