The behavior of compact options is changed in 8.5.2 when compact options for DAOS and archiving are used in combination. You can now use a combination of options to DAOS-enable a newly created archive database.

load compact -a -DAOS on mail\database.nsf

When an archive database is newly created during the archive, the new archive database will be DAOS-enabled.
Important to know is that the combination of compact options will not affect the mail\database.nsf database itself, or any existing archive databases.
Also, the behavior of compact does not change when the otions -a and -DAOS off are used together.