Problem unzipping
 

I tried this but when I pulled up DOSbox to try to run the game, it wasn't installed... and I couldn't see the file to install it in the DOS directory... any help is appreciated.

What do you mean, "wasn't installed"? These games don't automatically install themselves on download...
Where did you download it to, exactly? What have you exactly done? Step by step, please.

What do you mean, "wasn't installed"? These games don't automatically install themselves on download...

I downloaded it to the desktop, then I tried pasting the files over to another folder on the desktop but nothing unzipped or got installed. I'm running Windows Vista. When I look at the files in DOSbox, I see the zip file in there but I can't get it to unzip to load and play. The game is The Legacy, Realm of Terror. Can you help? Perhaps I didn't do Japofran's method properly...

well if you're having problems with default vista zip thingie you can go download 7zip and unzip it with that one

although i have no clue what could you possibly screw

So both folders are in the desktop? It's hard to tell from here what went wrong... Make sure what you want to extract is selected before dragging it.