How to use AUTORUN.EXE Setup a CD with the following The file autorun.exe The file you wish to launch an application for A text file called AUTORUN.INF that has the following text: [autorun] open=autorun.exe myfile Where "myfile" is the complete name of the file you want to launch.(ie demo.avi) When the CD is inserted into the machine, autorun.exe will be run. It will search the registry and run the application associated with the file you named.