George
When you install DataDirector 2 it comes with an update for Database Maintenance, therefore you do not need to download any further updates for this program.
There is an additional update to Database Maintenance on the site, but this is only intended for users who still wish to use DataDirector v1.9 and are having problems with maintenance.
You will still need to run Maintenance as per usual with DataDirector 2.
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Paritech Support
support@paritech.com.au