Outlook Add-in Personal Folders Backup download
The Personal Folders Backup download (pfbackup.exe) creates backup copies of your .PST files at regular intervals, in Microsoft Outlook 2000, Microsoft Outlook 2002, Microsoft Office Outlook 2003, Microsoft Office Outlook 2007 and Microsoft Outlook 2010 versions, making it easy to keep all of your Outlook folders safely backed up. The following file is available for download from the Microsoft Download Center:
Backing up your Microsoft Outlook information is quicker and easier with the Personal Folders Backup feature. Personal Folders Backup creates backup copies of your .PST files at regular intervals, in Outlook 2002 and later versions, making it easy to keep all of your Outlook folders safely backed up.
Each .PST file contains all of your Outlook folders, including the Inbox, Calendar, and Contacts. You can have a single .PST file (usually called "Internet Folders" or "Personal Folders" in your Folder List), but you might also have an additional .PST file that you use for archiving ("Archiving Folders"). Personal Folders Backup lets you back up any or all of these .PST files.
For additional details and assistance refer to Using the Microsoft Outlook Personal Folders Backup tool.