Actually, the one I used was this:
http://modthesims.info/download.php?t=499140
Sim game selector: It doesn't limit cc, just selects which EPs/SPs you want to load.
Comments say that it worked with Steam, but not the latest version. Bolto7 left a note at the end of all the comments saying:
I like this tool! A little technical explanation would be nice in description too. I figured out myself how it works:
Upon unselection of extension (World Adventures in this case) and pressing save, it moves registry keys:
HKLM\SOFTWARE\WOW6432Node\Electronic Arts\Sims\The Sims 3 World Adventures
HKLM\SOFTWARE\WOW6432Node\Sims\The Sims 3 World Adventures
To the backup path at:
HKLM\SOFTWARE\WOW6432Node\Electronic Arts\Sims.BK\The Sims 3 World Adventures\ergc
HKLM\SOFTWARE\WOW6432Node\Sims.BK\The Sims 3 World Adventures
Upon restore, it restores selected registry keys if they exist in the backup path.
This tool does work well with standalone Sims 3 installation. For those who have Steam Origin version of the game and tool doesn't work, you could try to search need reg keys for your configuration and do manually the same. I understand it could be too difficult for regular user.