ckfinder asp /ckfinder php

Hi all,

i have an windows server that runs asp and php at the same time.

i installed ckfinder asp and ckfinder php but just the php version runs correctly.
Both versions use the same folders that need permissions so that is not an issue.

When i run the asp version it occurs an error "internal error", not showing the folder and files. While in the php version it works, shows the folders and files.
I already talked with the server suport and they say that everything is ok and fullfill the requirements of ckfinder.

The only thing i changed on both versions was the verification function to return true (just for testing).

So i'm asking if anyone know of some configuration on the server that has to be changed?
Or other thing that i could try, because from the support i cant get any help about this.

Thanks in advance