How lock users out of the tables, queries, reports, etc.

A bound and determined can get at things, but you can make it very difficult.  First your app should always be split, even if it's single user.

 Then distribute the "front end" as a MDE/ACCDE and turn off the database container and menus.  Force it into runtime mode by adding code at startup that quits if the app is not running that way.  

 That locks them out of all the design features, and because it is a MDE/ACCDE, they can't get at to code either.

Jim.

Jim.  Ok.  But questions:

1)  How do I turn off the database container and menus.  

and,

2) How do I force it into runtime mode by adding code at startup that quits if the app is not running that way.

--Steve