Q: How can I force my Lync clients to update their address book?

A: Lync clients will randomly download the address book update; however, you can force the update by using the following process:

1.Set the Lync client initial delay for address book download to 0: Start the registry editor, navigate to HKEY_LOCAL_MACHINESOFTWAREMicrosoftCommunicator, and create a new DWORD value named GalDownloadInitialDelay, then set the data to 0 and click OK.

2.Close the Lync client if it’s running and delete the GalContacts.db and GalContacts.db.idx files, which you will find in your profile (e.g., C:Usersjohn117AppDataLocalMicrosoftCommunicatorsip_john117@savilltech.net folder).

3.Start the Lync client, and the address book should download.