References Command (Tools Menu)
Displays the References dialog box. This dialog box allows you to add an object library or type library reference to your project. This makes another application's objects available in your code. Once a reference is set, the referenced objects are displayed in the Object Browser.
You can also add references to other loaded and saved projects. If a project has not been saved, it appears as "UNSAVED: <ProjectName>" and you will be unable to make a reference to it.
Only available at design time.