Setup issues.

So I downloaded ISO's for all four discs of Imperium Galactica II last night, a game from 2000 I really fancy playing again. I've extracted them all but my problem is that Setup.exe isn't doing anything. It shows up in processes but there's nothing actually going on. Any help?

Also, I'm only going to continue helping you if you promise to play me multiplayer, this game's multiplayer is orgasmic, but no1 still plays the game.