sorry, Francescina, i'm still not very clear.
i'm going to set up two types of users, one type of users just like full mission of users, they can do anything as they want. and the other type of users r only allowed to use the user-form provided to input data, and update table. they r not allowed and would not be able to go into the tables, modules etc to change anything behind, so i was thinking to hide the the database window, as they still can unhide them, it doesn't really work. but the one u just said, Tables accessed via Queries exclusively (with Owneraccess option activated). will that allow the full permission user to change anything behind form?
thank you!