I have deleted your post as the provided links are to a site where you can download cracks for various games, allowing you to play them without CD. Just remember that if you feel the need to put the disclaimer ''not only is it probably more 'legal' than this alternative'' at the end of your post, it's probably not one you should make here on Cnet.
I have Sims 2 installed on my computer, but have since lost the installer disc that would allow me to play the game. I was wondering if I buy one of the two expansion packs, could I install it on the computer and then play using that disc. Alternatively is there a way I could play my original sims 2 without the installer disc( I have the other four discs, just not the first)