On this XP system, the Outlook Express:
  • Address Book is named:


    {the_Windows_XP_username}.wab


    and is stored in:


    C:\Documents and Settings\{the_Windows_XP_username}\Application Data\Microsoft\Address Book


  • The email files are named:


    Folders.dbx
    Inbox.dbx
    Offline.dbx
    Outbox.dbx


    and are stored in:


    C:\Documents and Settings\{the_Windows_XP_username}\Local Settings\Application Data\Identities\{BE72803F-096D-4D60-A713-38D3BF0C7CA1}\Microsoft\Outlook Express


Copy those 5 files onto the Windows 7 Desktop, load Outlook, click File > Import and Export > Import Internet Mail and Addresses > Next > Outlook Express 4.x, 5.x, 6.x or Windows Mail > Next > . . . and you'll have to figure it out from there because I really don't want to mess up my Outlook.