You did not mention what version of Outlook, this is always
helpful when asking a question.
However, in the following article:
OL97: AutoArchive Generates Error when Personal Folders Disabled
http://support.microsoft.com/default.aspx?scid=kb;en-us;175255
NOTE: If the Personal Folders service is disabled in the Mapisvc.inf file,
no Personal Folders can be created, and the same errors occur, regardless of
the version used.
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Nikki Peterson [MVP - Outlook]
Any body heard of this error code when trying to recreate
an archive folder/ pst file.
"An unknown error occurred, error code: 0x80040600"