This is a Test-Release which can be used by Microsoft to port the web-service to the new "Live Connect" authentication.
Microsoft (MSDN-Team) needs just to provide the "ClientID" for doing the authentication request. This ClientID can be changed in the UserSettings of the NNTPBridge. Currently it uses a "NNTPBridge_Test" ClientId.
Also the requested "scopes" can be changed in the UserSettings. By Default it will only use "wl.signin" and "wl.offlineaccess". The "wl.offlineaccess" is only needed if you want to enable automatic login. You can add additional scopes which must be separated by "space".
Attached you will also find the complete source-code to take a look into the authentication schema. It will pass the "AccessToken" to the web-Service as before the "AuthenticationTicket". This is the value which starts with "EwAw" and ends with "AA=" (like the old ticket).