The problem's found:

 

In the decompressed package of the CuteChat, there's a folder (C:\Program Files\CuteSoft\CuteChat\Toolkit\bin\Debug) which contains another CuteChat.dll and CuteChat.pdb which seem different from the ones in the (C:\Program Files\CuteSoft\CuteChat\CuteChatSample\bin). The wizard copys the CuteChatSample version into the ASPNF2 instead of the ones from Toolkit.

 

Now the app works fine.

Thank you anyway.

 

Best regards,

 

Rgain