Problem: When exporting messages from Outlook Express to Outlook, you may receive the following error message:
"The Export could not be performed. An error occurred while initializing MAPI."
Solution: You cannot export messages from Outlook Express to Outlook (to an Outlook .pst file) unless you also have Outlook installed on your computer. At least this was what I experienced.
September 2002
My suspicion is confirmed in Microsoft Knowledge Base Article - 179637
http://support.microsoft.com/?kbid=179637
from 10/24/2002.