OAuth2.0 is now supported from version 6.8.0125.0512 of the Windows Logon agent. The process is as follows:
Generate a Client ID and Secret on the DualShield Admin Console by going into Authentication>Agents and editing the agent used for Windows Logon.
Select the OAuth2.0 tab and click on Generate Secrets
The edit window will populate the Client ID and Secret...
Keep this window open and launch Windows Logon Manager on the machine which you installed the Windows Logon Agent on. (see Configure Windows Logon Agent)
Version 6.8.0125.051 upwards has notion to Use OAuth 2.0. Select this Option and click on Configure
Copy out the Client ID and Secret from the Agent Edit screen on the Admin console and paste into the OAuth Configuration box.
Click OK