If you mean that you don't want anyone to be able to do anything else on
their machine until they close the Access application, I have used a form as
my main screen that is a popup and placed this code in the On load property:
DoCmd.Maximize ' maximizes the form
DoCmd.RunCommand accCmdAppMinimize 'minimizes the Access window.
You have to make all other forms and reports that you want to view popups.
Be forewarned that the only way to get to other apps is to quit the Access
database.
