You can add a Class module to your project by choosing the Project, Add Class
Module VB menu option. From the resulting dialog box (see Figure 12.1), you can
choose Class Module, VB Class Builder, Complex Data Consumer, Data Source, or
OLE DB Provider.

FIGURE 12.1 Dialog box for adding a new class module to your project.
If you choose the Class Module icon, you will find yourself in the new class
module's code window.