I'm getting the same error message, but I'm using Office XP.  Did you get an answer on how to fix this?
   
    ----- Gayle wrote: -----
   
    I have Microsoft Office 2000, when I try to access the
    address book I get the following error:
   
    Logon Failed. You must log onto Microsoft Exchange to
    access your address book.
    Error Code: Unspecified Error.
   
    I don't want to have to log on to the Microsoft Exchange.
    I don't even know what it is. How do I reset my default
    address book to the one in Outlook, or that I can create
    thru Works?
   
    Thanks,
    gayle
    .