md ducktale would just make a new directory.
Here's the whole procedure.
-download the game (the zip file) to your desktop.
-right click on it and choose WinZip - extract to folder (third line I think).
-now you'll get a new folder called Duck Tales on your desktop. Rename it to just: DUCK
-move the DUCK folder to your X drive (X is which ever drive you use most often - usually C
.
-Now run DOSBox and type:
mount X X:\duck (X is still the drive you chose before)
X: (X is still the drive you chose before)
ducktale
And there you go!!! The game asks you if you're using a joystic (usually people don't), so press N and your plaing the fabulous DUCK TALES!!!