If "access" means "changed", you can set triggers for delete/insert/update in the dbc so each time the table is changed, a record is updated in a separate table. The timer would check this table and... obious from here.

Vlad

>Than means I have to update all my existing programs with code doing that. I was thinking to have some kind of a 'monitor' watching tables and closing them if no access for X time.
>Thanks Mark