Insert any ActiveX control available on this system. Opens a dialog that lists ActiveX controls available on this system.

Choose a module from the list and press OK. The Register Module button is for use in cases where ActiveX controls exist on our system but have not yet been registered (for example, if we simply copy over an .ocx file into our ~/System32 directory but have not run an installation script or have otherwise manually registered it). It does not hurt to Register Module if a module has already been registered.
Next, click and drag into the form where the ActiveX control is to appear. Right-click on the control to set its properties, if any are settable at design time.