Misten Schelhaas...you say it has been upgraded to XP.....exactly how did you do this.......and what did you upgrade from .
If you formatted and installed XP clean then the Outlook Express address book is gone unless you saved the WAB to another hard drive or E mailed it to yourself.
If you upgraded from say win 98 to win XP ...then the address book should still be available to you .
let us know how you achieved the upgrade .
dl65