The Exchange Agent now provides the ability to restore mailbox or public folder items into PST files, which can be opened in Outlook or distributed to users. If the Agent for Windows and Outlook 2003 or greater is not installed the redirect to PST job will fail.
To redirect Exchange mailboxes to PST files, Outlook 2003 or later and the Backup Exec Agent for Windows must be installed on the server to which you are redirecting the restore. Outlook 2010 requires the default 32-bit installation.
Backup Exec Agent for Windows (AWS) or Outlook 2003 or greater is not installed on the target server.
Microsoft Outlook 2003, 2007, or 2010 (32-bit only) must be installed on the destination server where .PST file is to be restored. Make sure that the Agent for Windows Server is installed on the Exchange server too.
Backup Exec 2012
Exchange Redirection to PST file.