How to install The sims 3 without internet connection?

I wonder if the setup needs a internet connection (which is really stupid). I never tried offline.

Maybe Customer Support can tell you if a Internet Connection is required to install the game or why you are seeing this issues

They can be found here: https://help.ea.com/contact-us

See this post if you have trouble with the site: http://sims3.crinrict.com/en/2012/10/how-to-contact-ea.html