It depends on which software you are referring to. Are you talking World of Warcraft?
no, you do not need your Sims 3 disk, but you will need the disk for the expansion pack you want to install.
all you need is the expansion, first you install it and then every time you want to play the game you put in the latest expansion disc you installed
You do not need the internet to actually install the expansion Burning Crusade but you will need the internet to update and play it.
Yes, you need the AOE 3 to play any expansion pack. If you do not have AOE 3 installed and you try to install an expansion pack you will get an error. However after you install AOE3 you do not need to insert the disk to play an expansion.
when you install a sims 2. for example sims 2 university. there are two disk because it is such a big expansion pack. so put the first disk in and then the second disk. or you might have to update yours sims, because when you get an expansion pack you need to update with all the other expansion packs on your computer
USB
no, if you want to install the sims 2 you do not need the sims 1 installed.
You need to specify what you mean by "in the first expansion". Expansion of what?
If you have a Mac, You can install all the expansion packs and only need the last CD that you installed to run the game.
Yes you do, the expansion packs won't work without the base game.
It's not an expansion pack, so it doesn't need any other sims games for it to install and work.
First, you need to have a wireless router. Second, install an airport card to the laptop.