Yes, you must place the file in C:\Program Files\Activision\Star Trek Armada 2 and you must click yes when it says it's gonna overwrite Armada2.exe.
If you placed my file in a other folder it will not work.
that is what i did and it still says error: the host has a different verison of the game
It worked for me.
I'm sorry but can't help you then.
This has never happened to me before, but maybe have you considered that your Armada version is fine and the person in the lobby is the one with the messed up version?
what is that call again.. I think I have that Mod Manger..but you mean i can play mod ships .and also reg game.. when i want to.. what is the way it setup.. I ll try that but my mod also get in the way..