The Configuration Information feature in Microsoft Office Communicator (OC) R2 and Microsoft Lync 2010, Lync 2013 and Skype for Business clients can be used to troubleshoot Outlook integration and address book issues.
To access this information, press and hold the Ctrl key while you right-click the Communicator, Lync or Skype for Business icon in the notification area, and then click Configuration Information. The information that the Configuration Information feature retrieves occurs during logon and is typically set up by Group Policy. Although this information can be found in the log files and registry, this dialog box offers an easy way to read it. This makes Configuration Information a good starting point for troubleshooting.