If you want to access an access2000 database from vb using DAO, you need the DAO 3.6 files. If you want to use an access application compiled with Access2000 developers edition you need completely different files. If you want to use ADO on an access2000 database, again you need different files.
So if you don't want to tell us what you want to do, how could we know about what files you are talking about.