The Sims 3 Help! Please Read Description!?

[chen12]

I found a web site that said about the DEP. I read that and found about how to get there and I followed all the steps. The only problem is, I don't know where my sims 3 games are saved/downloaded. I can't find them. It says "go to browse then find where your game was installed and add TS3.EXE to the list. (The program may just be called TS3) Make sure it is an EXE Extension (right click, go to properties and it will tell you) Try to add all versions that you have ( TS3, WA, HELS and Ambitions)" I do not know were to find these. I have : windows 7, the place is called system32. Is that where I can find the "TS3.EXE" folder? If so, is it called something else? Please help me I am so desperate! It would be highly appreciated! Thanks ;)