Dapplegrey is a frontend for the MacOS X DOSBox port (which you can get from http://www.dosbox.com/ ) written in REALbasic. With Dapplegrey you can easily set options the DOSBox gives to you w/o having to enter them manually using the Terminal or have to edit the DOSBox config file. This file will be written before Dapplegrey tells DOSbox to start.