Problem:
After adding an external reference (e.g. Microsoft Visual Basic . NET DLL), you might want to find out what classes, structures, properties, or methods are available in that external component.
Resolution:
Use the Object Browser.
You will need to do few things before you can actually see the details about the external component since it will not be shown automatically:
1. click on the Customize that is just next to the Browse drop-down list
2. click on the Add button
3. click on the Browse button to find the component
4. click on the Open button
5. click on the OK button