Thanks for your help! I created a backup.pst of microsoft outlook 2000 and want to download it onto outlook express (2004 I believe). I have copied the file to the computers C: hard drive and tried to import it from there onto outlook express, and when that didn't work I tried to import it onto microsoft outlook - which also did not work. A window error appeared reading "Properties for this information service must be defined prior to use" and when I closed the error window another one appeared reading "The File C:/outlook backup.pst is not compatible with this version of the Personal Folders information service. Contact your administrator." PLEASE HELP ME! I really appreciate you taking the time to read this and to help me, thank you very much!