You might wish to visit this page from Microsoft, called “How to use the backup feature to back up and restore data in Windows Server 2003″
Here’s a link to an online Outlook Backup Tutorial for the following versions of Outlook. The tutorial covers both backup and restore.
* Outlook 2007
* Outlook 2003
* Outlook 2000
* Outlook Express
Outlook has a single PST file that you can copy off of the system in a pinch. And outlook express holds mdb files for each individual folder in OE> Just search system files and you will find them!