Check Set Security Options
You will see a place to set a password.Before setting a password select the features you wish to protect.After selecting and setting a password click Apply.
Create Database Prevents anyone from creating a database without the password.
Delete Database Prevents anyone from deleting a database without the password.
Read Only Records Allows user to browse records,but cannot make changes.
Edit Fields Prevents anyone from changing field labels without the password.
Delete Record Prevents anyone from deleting a record without the password.
Share Record Lock Only used on networks where two or more users are sharing the same database.Prevents two or more users from saving the same record at the same time.
Set Default Database
MPB gives you the option of choosing the database you want to load by default.
it also gives you the option of setting an administrator password to prevent unauthorized personnel from editing field labels,creating or overwriting a database or deleting a database.
To choose your default database select "Preferences" from the "File" menu.
From the form that appears choose the browse button.Find the MPB database that
you wish to load by default.Once loaded this setting is auto saved.