Open your DosBox, and you should be greeted by a screen that looks to be splitted in half. The right side is your NC. If you double click the ".." at the very top, it will take you into your dos games folder where you should double click on Arena. Once inside the folder, double click on the "a exe" file. You should be running Arena in no time now. In DosBox, most all programs use executable files, though some use batch files instead. It's usually pretty easy to decide which exe or bat you want as most are install, setup, sound, etc...
Now that we have successfully set up our DosBox, lets cruise over to
Abandonia to download more games!
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If you can't get NC auto-mounted, please check to make sure you typed everything correctly, and that you left a space between the last entry and your mount c: entry.*