Prerequisites for Enterprise Vault Outlook Add-Ins

Enterprise Vault Outlook Add-Ins provide Enterprise Vault user functionality to Outlook users. From within Outlook, users can archive items manually, and view, copy and delete archived items. Outlook users can also start Archive Explorer and Enterprise Vault Search, within Outlook, to access and manage items stored in archives.

The following Enterprise Vault Add-Ins are available:

Outlook Add-In
HTTP-only Outlook Add-In

Before users can send items to an archive from within their Outlook client, one of the Outlook Add-Ins must be installed on their computers. Install the Outlook Add-In on user computers after you have configured the Enterprise Vault server.

For either of the Add-Ins, user computers must have the following:

Windows XP (with Service Pack 2 or later) or Windows Vista. (Currently, only 32-bit versions of Windows XP are supported.)
Internet Explorer 6.0 or later, with JavaScripting enabled.

This must be installed, even if it is not used.
TCP/IP protocol.
Mail client - Outlook 2003 or Outlook 2007.

Install Internet Explorer before you install the mail client.
If you plan to enable Vault Cache, Background Intelligent Transfer Service (BITS) 2.0 or later must be installed and enabled on users' computers. This service is used by Microsoft Windows Update and is included in Windows XP Service Pack 2 and Windows Vista. If necessary, it can be downloaded from the Microsoft website.
If you plan to enable Vault Cache, and have disabled the expansion of PST files on users' computers by setting the registry entry, PstDisableGrow, then you need to request and install the following Outlook hotfix from Microsoft.

For Outlook 2003:

http://support.microsoft.com/?kbid=953671

For Outlook 2007:

http://support.microsoft.com/?kbid=953925

You will also need to configure the registry setting PSTDisableGrowAllowAuthenticodeOverrides on users' computers, as described in the chapter on Vault Cache in the Setting up Exchange Server Archiving manual.
If you plan to enable the Windows Desktop Search plug-in, then Windows Desktop Search 3.x or later must be installed on the target desktop computers.

The Windows Desktop Search plug-in requires Outlook 2003 or Outlook 2007 and version 7.0 or later of the Enterprise Vault Outlook Add-In or HTTP-only Outlook Add-In installed on the desktop computers.

You can download Windows Desktop Search from the following address:

http://www.microsoft.com/windows/desktopsearch/downloads/default.mspx

For Outlook 2003:	http://support.microsoft.com/?kbid=953671
For Outlook 2007:	http://support.microsoft.com/?kbid=953925