This is probably a work in progress but I uploaded the FB^3 DropShell project:

http://www.slip.net/~heatherd/futurebasic/FBDropShell.sit.hqx

I added a splash screen if you double-click the application to launch 
it.  It doesn't show this splash screen if you drop objects on it.

You can drop files, folder, and volumes on it.  The only thing it 
does is get the FSSpec and write it's data to a log file on the 
desktop.

It also has a Select File menu item, it only selects files not 
folders or disks.  It also writes to a log file.

In any case if the log file already exists on the desktop, it will 
append the info to the log file.

The splash screen doesn't self-dismiss, you have to click on it.  If 
you click on the text box, it will scroll, another click and it is 
dismissed.  The text in the text box is a simple TEXT/styl resource.

The project is a Tech runtime and therefore many FBII runtime 
features aren't available.  Most of the framework for complete event 
handling is there but many of the functions are commented out.  You 
can add these functions if you need to respond to these events.  Same 
goes for 'HighLevel' AppleEvents, it responds to openApp, OpenDoc and 
QuitApp.