TarSlinger

I downloaded the file (took over an hour) and installed it i believe. I can't find where it went to play the game. I tried putting my disc in but it says it can't perform the setup.exe. I thought I downloaded the whole game so the disc wasn't needed, but I can't find it anywhere. Did a search and found two Dune 2000 items One was the latest patch ( i tried that first) the second item was the Dune 2000 game but i can't get it open. Any help please.