How Come I Can't Find Civilization IV in Program Files?

I'm looking for Firaxis Games in Program Files but I can't find it. I also tried Civilization IV or Sid Meier's but nothing! Help Plz!How Come I Can't Find Civilization IV in Program Files?
If you have a shortcut or icon, right click and select Properties, then Find Shortcut. It should tell you what directory the executable file is located.How Come I Can't Find Civilization IV in Program Files?
you may not be on the right disk. I think firaxis is on disk F by default but I'm not sure. I know nexon hides on disk F instead of the usual C.

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