Can you explain it more clearly? Like, what do you mean with on computers that already had actual CD game on? Does that mean you use a computer that is different from the one you mention?
And as for 7zip, you have to download it. I forget with winrar, but maybe you have to download too
And just asking, but why do you download 2.1? You should download DSL 2.2 or 2.2 Complete Edition instead
I had the original CD disc of the game, so I used it to install the game originally. Then when I found GTM, I downloaded DSL on the same computer. I did this with 2 separate computers; install the original CD, then downloaded from here.
With the new computer I have and the fact that I misplaced the CD game because of me moving, I'm litterally lost in the dark about what the hell I need to do.
The only reason I've tried downloading everything is because I kept getting the Internet Explorer icon instead of the zip folder you're supposed to get so I wanted to see if that was the case for the other versions. It has happened for each one except for Ironforge