Developer website: NibFile
AutoOpen is a simple utility which allows the user to specify a folder which will be opened by the Finder when a volume mounts. This is especially useful for developers creating CDs, DVDs or DMGs. It is a much better user experience for the window to simply appear when your CD or DMG mounts, rather than having the user search their Desktop of Finder window for it.
Requirements
MacOS X 10.0 or later