CST Knob ActiveX Control Cost: $799 Get the full version     Trial version     Developer's Website Contacting third-party download site please wait. If your download does not start, click here, or get the full version Descriptions CST Knob ActiveX Control: The Knob is a multi-purpose and highly customizable graphic component which can be designed for a knob interface. It provide a powerful alterable tool includes multiple graphic elements of Annular, Caption, Hand, Tic, etc for designing the control. With the dynamic property page, it will be an ease-to-use element for display.