Compressor 3 Call Droplet via Appolescript result: Cannot open File

Question

Hallo,
I try to use an apple script to drop a .mov onto a Compressor 3 droplet.
That works:
Dropping the same movie by hand on the droplet will result in the conversion as expected
That fails:
Activating the droplet by applescript. Thsi is the script:
tell application "Finder"
open file "VODRAID:QT:VWGesetz.mov" using application file "VOD_Zutaten:Documents:admin:Users:VoD.app"
end tell
Rights are sufficicent (File). Paths are ok.
Error is: Cannot open File (so it actually finds the file)
Any idea what could be wrong?
Thanks a lot
Regards
Ute

Answer 1

Hi. Both are extension panels. Fundy Image Brander is a paid for extension (http://www.fundysoftware.com/image-brander/) and the other a free extension (http://lumens.se/tychpanel/).
I have seven extension panels running and these are the only two that require the user to set file input locations.
Photoshop otherwise works just fine and I have no problems opening files. Other Windows programs also run without any problems. It's just these two that hang when the select or open file dialogue appears.
And no I haven't contacted the producers.