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The db_file_generations option specifies the number of archived UBroker databases that should be stored. The following databases can be archived: bcomponent.db, scomponent.db, uems.db, ues.db and they will be archived on a rolling basis in a hidden .archive folder. The path for this folder on Windows is: C:\Program Files\Universal\spool\ubroker\.archive
and on Linux it is /var/opt/universal/spool/.archive
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