Registering WPF Application with AutoPlay

I want my application to be an option to run when a user enters a USB or a CD/DVD ROM to import the documents. So far I know this can be done via AutoPlay, but the more I read the more I'm concerned. I've found this (for Windows Runtime application, which I'm not using). It looks incredibly easy. However I can't guarantee the user will be on Windows 8 so I can't use that run time. So I've found this documentation from Microsoft, and this example from code project.

I get lost when it gets to the shell extension in the code project example. Is this a necessary step? I thought I could just implement IHWEventHandler in my WPF application and be set. Is this not true?