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If you are running Microsoft Office Communicator 2007 R2 RTM or any earlier versions of Communicator 2007, you do not see the following new features in Office 2010 builds:

  • The Contact list in Outlook

  • The "Quick Contact" list in Outlook

  • The "Quick Search with Presence" feature that is integrated in Outlook

  • The "People Picker" in Outlook quick steps and Backstage of Office documents


To resolve this issue, install the hotfix package that is described in the following Microsoft Knowledge Base article:
For more information, click the following article number to view the article in the Microsoft Knowledge Base:

976135 Description of the Communicator 2007 R2 hotfix rollup package: January 2010

Office 2010 uses Communicator APIs that requires these features from Communicator, and they are available only as part of this hotfix. After you install this hotfix, the features that are discussed in the "Symptoms" section are available.

Office Communicator 2007 R2 CU4 supports interop with the x64 edition of Office Outlook by using Exchange Web Service (EWS) in an Exchange and an Office Communications Server integration environment. By default, Office Communicator uses EWS to download notifications every 15 minutes. These notifications previously relied on MAPI. This enables the following features:

  • History Integration

  • Search for Personal Outlook Contacts in Office Communicator Search and in Outlook Search by using OC in the integration environment

  • Missed IM and Call Notification

Any Office Communicator user interface that requires entry point to x64 edition of Outlook does not work in the integration environment. This includes the following:

  • Right-click on Contact properties to see Outlook properties

  • Right-click on Contact to find previous conversations

  • Right-click to schedule a meeting or send an e-mail

Note All other Integration features work exactly like they work with the x86 edition of Office outlook.

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