At our recent LAN Party, I ran into a problem playing Unreal Tournament 2004 (old, I know...) on Windows 7. After clicking "Join Game" or "Host Game" I am presented with the following error message:
It has been determined that the Windows Firewall is enabled and that UT2004 is not yet authorized to connect to the internet. Authorization is required in order to use the online components of the game. Please refer to the README.TXT for more information.
Note that in many configurations on Vista/7, ut2004.ini is saved/loaded from underneath %LOCALAPPDATA%\VirtualStore (usually C:\Users\username\AppData\Local\VirtualStore) due to UAC File Virtualization. Edit ut2004.ini in the VirtualStore as it is loaded preferentially.