Cocoon is a wrapper for DosBox. Included with Cocoon is OpenGEM, a graphical user interface to navigate between folders and to manage your files. Cocoon makes it easy to set up an emulator and to add additional DOS software. Although Cocoon supports disk images, you don't need to create or manipulate disk images to use DOS software. Simply tell Cocoon where to find the files and optionally start your DOS applicationa automatically after starting the emulator.