Hi,
First Download Another World for free here: http://www.bestoldgames.net/eng/abc/a.php
For installing this game/make this game work. You shoud install this app: http://www.codeweavers.com/compatibility/browse/name/?app_id=5949
In that forum you can read how to install it.
When installed make a "dosboxprog" folder and put the game in there (folder). Name it Another. now follow up the instructions of dossbox to execure the game
The commands will probably this:
Mount c c:\dosprogs\
c:
cd another
another
Have Fun