Earlier I had posted about my troubles making my own modified race, and how I could not get it to work.  So I decided to try an established modified race, the Asa Race Mod 1.9 from the Library.  I had no problems putting it in C:\Program Files (x86)\Stardock Games\Galactic Civilizations II - Ultimate Edition\Twilight\Mods but when I started the game, much like on my own attempts it did not replace the customized race.

I'm just checking to see if this is a known problem with Windows 7 because I figured that the admins wouldn't have allowed a mod to go into the Library that didn't work, so I'm trying to figure out why I'm having this kind of problem.