Mino – The UC Guy

Microsoft Unified Communications Blog

Adding Distribution Groups to Office communicator ( MOC )

Posted by Mino on October 8, 2008

Any Post starting with this disclaimer means that this post was not written by me however I have liked it and added to my blog. I am also including the link to the original or similar post to provide credit to the original author


As long as the distribution group has the e-mail attribute filled in, OCS expansion will function.

Searching for Sales, we will see that it will display our Sales group.  We can add this group to our contacts list and we can expand the group information.

Your Communicator client will refresh the membership information every so often to determine for distribution group modifications.  After some messing around with this, I see this is separate from the Address Book syncing as I attempted to manually syncronize the Address Book service and even went as far as deleting the GalContacts.db file on our client to force a re-download of the Address Book files.

For those that do not know, the Address Book files is what allow our clients to search for SIP enabled users and Distribution Groups.  It also providers other functionality such as Phone Number Normalization when doing Remote Call Control.  This information gets stored on our client as GalContacts.db in “%userprofile%\ Local Settings\Application Data\Microsoft\Communicator\.”  The Address Book gets updated in OCS every 24 hours which can be expedited by navigating to the following directory and running the following command:

2 Responses to “Adding Distribution Groups to Office communicator ( MOC )”

  1. Valery said

    Are where any way to add distribution group to contact list using script?

  2. Alli said

    Same question as Valery, is there a way to add Distribution groups to users’s contact lists through script?

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