My .pst file keeps getting bigger, despite all folders being set up to
auto-archive.

Looking at the email folders, there are lots of emails still there that
should have been archived. Most of those that are still there have
attachments, and looking in the archive .pst file I see that there are very
few emails with attachments in it. It seems as though the archiving process
usually (but not always) fails to archive any emails that have attachments.

Is there an option somewhere to prevent archiving of emails with
attachments?

Or is the failure to archive emails with attachments a feature of Outlook?

Using Outlook 2000 SP-3.

David