Outlook 2003 - Backing Up mail files

The following is a list of data store and configuration files used by Microsoft Outlook 2003
Some of the folders might be hidden folders . To view hidden files-

Click Start, and then click My Computer.
On the Tools menu, click Folder Options, click the View tab, and then click the Show hidden files and folder option.
Windows 2000

Double-click My Computer on your desktop.
On the Tools menu, click Folder Options, click the View tab, and then click the Show hidden files and folder option.

Your OUTLOOK configuration may not include all of the following files. Some files are created only when you customize Outlook features.

Outlook data files (.pst)

drive:\Documents and Settings\\Local Settings\Application Data\Microsoft\Outlook

Offline Folders file (.ost)

drive:\Documents and Settings\\Local Settings\Application Data\Microsoft\Outlook

Personal Address Book (.pab)

drive:\Documents and Settings\\Local Settings\Application Data\Microsoft\Outlook

Offline Address Books (.oab)

drive:\Documents and Settings\\Local Settings\Application Data\Microsoft\Outlook

Command bar and menu customizations (.dat)

drive:\Documents and Settings\\Application Data\Microsoft\Outlook

Navigation Pane settings (.xml)

drive:\Documents and Settings\\Application Data\Microsoft\Outlook\Outlook.xml

This file includes Shortcuts, Calendar, and Contact links.

Registered Microsoft Exchange extensions (.dat)

drive:\Documents and Settings\\Local Settings\Application Data\Microsoft\Outlook

Outlook contacts nicknames (.nk2)

drive:\Documents and Settings\\Application Data\Microsoft\Outlook

Rules (.rwz)

drive:\Documents and Settings\\Application Data\Microsoft\Outlook