[Metacard] Desktop Drag&Drop files

[Alex Shaw]

Hi,

what..
-Simple executable app (or its alias/shortcut) which sits on the desktop.
-User can drag & drop random files onto the app.
-App processes files.

I can easily access the list thru the environment variable names $0 $1 $2 
etc on the pc but the same app on the mac returns empty variables & will 
only allow me to drop metacard files onto it.

Someone mentioned appleevents.. but how?

thanks
alex