Completing this exercise depends on the correct setup of the Microsoft Agent control. Although Internet Explorer 4.0 ships with the final version of the Agent control, this exercise was created with the beta 3 version of the control. This means that you should not install the Agent control that ships with IE 4.0, but rather install the beta 3 version from the CD-ROM that accompanies this book.
As an alternative, you can examine the documentation for the IE 4.0 Agent control and determine whether the code in this exercise is acceptable. You might also choose to modify some of the code where appropriate.