Solution works only partially
Firstly, I changed Authentication = true and hardcoded PIN both on server and client side. When I tried to connect
Device A (Toshiba stack / Win7) [Client] ---> [Server] Device B (Microsoft stack / Win8).
Yes! It works, device has been paried and data sent. But in reversed configuration
Device B (Microsoft stack / Win8) [Client] ---> [Server] Device A (Toshiba stack / Win7)
It not works silently. Toshiba security bluetooth still prompts for PIN
Checked for Toshiba 8, and newest 9.1
I attach modifed demo source code of Chat/Server used for my tests.
[attachment deleted by admin]