I would like to install The Sims 3 without a CD drive.

Sorry for the late reply, but others might have the same problem on another game (like me with Age of Empires 2).
The easiest solution would be to buy a USB CD drive, but there is a free method.
Borrow a PC with a CD drive (or go to their place with a USB stick). Put the CD in the drive, and with software like Daemon Tools Lite ( http://www.clubic.com/telecharger-fiche10729-daemon-tools-lite.html )
create an ISO.

You just have to install it from the ISO like with the CD.

From another computer with a CD drive, you need to extract the CDs into ISO files. Then, mount the image of the files with a virtual drive like Daemon Tools.

I tried, but I can't... I installed it and I have an account, but I can't download the game.

Did you manage to activate your game on your account?

Hi, if you have the CD, I don't think your question is relevant.

Otherwise, I don't know if it is already installed and if you want to play it without the CD, you just need

to burn it onto a CD-ROM.

Bye!

:S Sorry for you, have you opened it yet??? If not, go get a refund :) And download it by paying on your computer :)
If you have already opened it, listen to Mouket40 :)