From the doc: 'This utility shows the database password of every password-protected mdb file that created with Microsoft Access 95/97/2000/XP or with Jet Database Engine 3.0/4.0 . It can be very useful if you forgot your Access Database password and you want to recover it. In Access 2000/XP files, this utility cannot recover passwords that contains more than 18 characters. * This utility shows only the main database password. It cannot recover the user-level passwords.'
accesspv.exe