Step 3: Creating an auto execute command
Now, this is not necessary, unless you wish to have some app open.
action="Message to be displayed to describe app being run"
NOW, there are a couple options.
You could have the app only show up in Autoplay, or run when the device is opened from "My Computer"
open="App to be opened.exe"
Run on open from "My Computer":
shellexecute="App to be opened.exe"