3. Address Book

Getting the data out of your address book for safekeeping is relatively easy. From the menu select File | Export | Address Book and select the comma separated text file as your output format. Then select the fields you want to export. To make sure you know where the backup is going, give a full path name. To restore the address book or to get your addresses onto a new system, the process is not quite symmetrical. Select File | Import | Other address book and select the text file option again. You'll be given a list of fields to import. Since you're importing a file that was created by Outlook Express, you usually don't need to make any changes here. After that, click your way on through the wizard and you'll get your address book back. 

4. Mail Rules

The mail rules are stored at HKEY_CURRENT_USER\Identities. If you run Regedit and export this entire subkey to a file the same way you did with account settings: from the menu select Registry | Export Registry File. Save the file to a name like "rules.reg". 

Restore (if necessary):  Under the Identities key each subkey has a long number that looks similar to {36753740-2WEE-781D3-89B1-00A0C9900DSA}. So if you have five different identities in Outlook you will have five of these long numbers. Below the numbers are all the settings specific the the identity (signatures, mail rules,...). If you are restoring without reinstall and on the same PC these numbers do not change (as far as we know !) and you can just restore the registry entries by clicking on the reg file.