Short description of Autorun Inf Editor 1.0: The Autorun.inf Editor is a program that can be used to quickly and easily create autorun CD autorun.inf files. An autorun.inf file is a required file when creating an autorun CD. When a CD is put into the drive, the operating system looks for the autorun.inf file. If the file exists, it reads the file and then knows how to " autoplay" the CD. There are a number of things you can do with an autorun.inf file.