(Do you mean the code to install??)
If so, it should be on the back of the instruction booklet
The code for the game is on the back of the manual.
You can find one in a cheat code book.
Nightlife is all ready installed. If you can't find it, uninstall, then reinstall Double Deluxe. (I had a problem installing it, but nightlife was there).
I hope you mean sims 2 double deluxe. If so, you just type in:::::: ctrl, alt, c. then you type in help to find out cheats. Then, after that, press enter to enter them
you have to have it to install the game, every game has a different code, look on the very back of the manual to find the code
all the codes are different, look on the back of the manual to find it
You go to your email. It should be there, but be sure to check your spam folders.
You can find them downtown. I usually go to the crypto night club and hang out there for about 2 sim hours.
by using downloads. you can find them at modthesims2 dot com and search "Naruto"
http://www.freewebs.com/sonic_adventurer/axstore.htm
If you are talking about computer software, then you need to get the registration code from your official documentation, which you obtained by purchasing the software. Any other means is illegal.
To get a car you have to first build a garage. After that you simply go into the category with three dots and that is where you will find one.