I had a brief addiction to Star Trek: Birth of the Federation back in the day. I don’t have the CD any more.
Is it available anywhere? If so, does it run on Windows XP?
It seems to be still available from Amazon (albeit very expensive if you want it new.)
Seeing it is a DirectX 6 game, I assume it still runs on Windows XP (however, it probably won't run on the 64-bit version)