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How to Control Offline Address Book Download Behavior in Outlook in Cached Exchange Mode

 

Topic Last Modified: 2007-05-30

Use this procedure to create a new registry key to control offline address book download behavior in Outlook in Cached Exchange Mode.

This procedure involves creating and configuring a new registry key.

warningWarning:
Incorrectly editing the registry can cause serious problems that may require you to reinstall your operating system. Problems resulting from editing the registry incorrectly may not be able to be resolved. Before editing the registry, back up any valuable data.

  1. On the Outlook client computer, open a registry editor, such as Regedit.exe or Regedt32.exe.

  2. Navigate to: HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\11.0\Outlook

  3. On the Edit menu, point to New, and then click Key.

  4. Type Cached Mode.

  5. On the Edit menu, point to New, and then click DWORD Value.

  6. Type DownloadOAB, and then press ENTER.

  7. Double-click DownloadOAB. In the Edit DWORD Value dialog box, enter one of the following in the Value box, and then click OK.

    • 0 – The offline address book does not download automatically.
    • 1 – The offline address book uses the Download Full Items download mode. This is the default setting.
    • 2 – Download the offline address book in any download mode, but download a differential update in the Header only download mode.
    • 3 – Always download the offline address book and a differential update in one of the following download modes: Download Headers and then Full Items, Download Full Items, and Download Headers.
  8. Close the registry editor, and restart the Outlook client for the change to take effect.

 
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