Inserting a Composite Control
The Add Class dialog box allows you to insert an ATL object into a project. Access this dialog box by right-clicking the project name in Solution Explorer, pointing to Add, and then clicking Add Class.
In the Add Class dialog box, choose ATL Control. This will start the ATL Control Wizard. To create a composite control, select the Options tab, and click the Composite control check box.
A default HTML page will be created for viewing the control.