Software & Apps MS Office How to Back up or Copy Your Outlook Express Address Book By Heinz Tschabitscher Writer A former freelance contributor who has reviewed hundreds of email programs and services since 1997. our editorial process Heinz Tschabitscher Updated December 04, 2019 Select Tools | Address Book... from the menu in Outlook Express. Heinz Tschabitscher MS Office Outlook Word Excel Powerpoint Tweet Share Email There's nothing in life only half as important as the people you know, and there's nothing in Outlook Express as important as your contacts. That's why creating a backup copy of them is a good idea. Back-up or Copy Your Outlook Express Address Book To create a copy of your Outlook Express address book for backup or migration purposes: Select Tools | Address Book... from the menu in Outlook Express.Choose Help | About Address Book from the address book's menu.Highlight the path in the File: box, not including the file name.If the complete string under File: is "C:\Documents and Settings\user_name\Application Data\Microsoft\Address Book\user_name.wab", for example, highlight "C:\and Settings\user_name\Application Data\Microsoft\Address Book\".If your "About Address Book" does not show a File: box, select Run... from the Start menu.Type regedit.Click OK.Go to HKEY_CURRENT_USER\Software\Microsoft\WAB\WAB4\Wab File Name.Highlight the path of the Default key as above.Press Ctrl-C.Click OK.Select Run... from the Start menu.Press Ctrl-V.Click OK.Click on your address book file — the file name in the File: box above; it typically carries your user name — with the right mouse button.Select Copy from the context menu.Open the folder where you want to put the backup copy in Windows Explorer.Select Edit | Paste from the menu. Recover from the Backup Copy of Your Outlook Express Address Book Hopefully, you will never need the backup copy of your Outlook Express address book, but here's how to restore your Outlook Express address book from the backup. Note: exporting the Outlook Express address book using the method described above only works if you do not share your Outlook Express contacts with Outlook. You can back up a shared address book together with other Outlook data.