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NOTE: These procedures only apply if you have installed Outlook with the Corporate Workgroup/Other option. This option allows you to use Messaging Application Programming Interface (MAPI) services. To determine your installation type, on the Help Menu, click About Microsoft Outlook. In About Microsoft Outlook, you should see "Corporate" if you have the Corporate Workgroup installation.
The Permission and Summary tabs are missing on sub-folders created under Public folders.
The Microsoft Exchange add-in, Emsuix2.ecf, was removed or otherwise not installed or active.
Install the Emsuix2.ecf Extension
Activate the Extension
The add-in Emsuix2.ecf adds functionality specific to Microsoft Exchange Server. The user may also notice other options missing or not active, such as Synchronize, and Out of Office Assistant. This and other extensions are located in the folder:
C:\Program Files\Microsoft Office\Office\Addins\<filename.ecf>
If the extension or add-in is not on your computer, run Setup and reinstall Outlook. If you suspect that it is damaged, rename the extension, run Setup, and reinstall Outlook.