How to back up and to restore Outlook Express data

http://support.microsoft.com/kb/270670

How to manage .pst files in Outlook 2007, in Outlook 2003, and in Outlook 2002

http://support.microsoft.com/kb/287070

http://www.sitedeveloper.ws/tutorials/outlook.htm

Backup Thunderbird emails & profile (or restore from backup)

http://www.freeemailtutorials.com/mozillaThunderbird/backupRestore.cwd

http://www.columbia.edu/acis/faq/84.html

Free Extract outlook express emails, attachments , window address book

http://www.brothersoft.com/free-outlook-express-extractor-download-52254.html