I need help with Sims2! Can you install two expansion packs at once?

[McFester]

I think you can, but whenever I try, it just overrides my previous expansion pack...
Does anyone know?
And if you can, are there any expansion packs that you CAN'T install together?

Thank you so much!

 

[Nodsu]

You have to install the expansion packs in specific order. See here for example: http://compsimgames.about.com/od/expansionpacks/qt/sims2_exporder.htm