This is just a wild guess, but wouldn't it seem that your application should be named "emplode.exe" for this stuff to work?

Well, I've tried it, both with calling a named-the-same-as-my-exe application key, and also by calling other application's keys, and I get no results either way. If that was a restriction, then why doesn't it say so in the documentation for the PlaySound function?

The web page you linked gives no more information on the subject than MSDN does. There are no specific pieces of documentation stating how to trigger items in the appevents/schemes/apps tree. Anywhere. Not in MSDN, not at any of the code sites on the internet, not on Usenet, nowhere. I can't find diddly-squat on the subject. But There are hundreds of apps that make it work just fine and I don't know why mine can't. It's very frustrating.

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Tony Fabris