Outlook Express isn't part of the Office suite of application, but comes
with Internet Explorer. Perhaps post your query there for answers. Link
attached.

http://www.microsoft.com/communities...&lang=en&cr=US



Robert D wrote:

> Outlook Express 6 compacted my email messages last night, however when I
> opened it this morning all messages (approximately 400) after 11/09/2007 are
> missing from my Inbox. All other folders seem fine and new messages also
> appear.