How to make an ASS droplet

I want to make a simple ASS droplet.
The intention is to drop a folder on the application and during the process I want to display a progress window. So I start ASS and define a new project as an ASS droplet.
In IB I design the window. At this point I don’t know what to do, how to display the window after something is dropped on it. I tried everything.
I can’t find any documentation about making an ASS droplet.
Can anyone tell me how to make this work?
Thanks,

John

I found an explanation about this subject.
Link below (German language)

John dh

http://www.fischer-bayern.de/applescript/html/droplet.html