To use Microsoft Office objects from Microsoft Access, you must first set a reference to the Microsoft Office object library. Click References on the Tools menu while in module Design view and select the check box next to Microsoft Office 9.0 Object Library.
If you fail to set this reference, you'll get a compile-time error, "User-defined type not defined", when you try to use objects in the Microsoft Office object library.
Once you've set a reference to the Microsoft Office object library, you can view the Microsoft Office objects, properties, and methods in the Object Browser. The objects that you can use to program the Office Assistant include the Assistant, Balloon, BalloonCheckbox, and BalloonLabel objects, and the BalloonCheckboxes and BalloonLabels collections.
The following properties of the Assistant object aren't available in Microsoft Access, although they may be available in other Microsoft Office applications:
Note The Office Assistant isn't available in the run-time version of Microsoft Access.