Ok, I downloaded a PC game, unrar'ed and have CD1 2 & 3.... What now?

I'm under the impression these 3 .rars' are ISOs, but I'm newbishly confused on where to take it from here. Do I go through each rar and click setup.exe in the 1st one, et cetra? This is sorta' the 1st pc game I downloaded, so I'm not used to handling a game outside of an emulator: Silent Hill 2, always a wife hating monster sexing classic.If anyone can solve this ridiculously easy situation, I'd be greatly appreciated.Danke.

Use a tool like Daemon Tools or Alchohol 120% to create fake drives.Then mount each CD to the drives.

don't talk about warez on this forum. Locked.