The UserDesignerControl is a component which you can add to your Visual Studio toolbox, and then drop onto a Windows Form. The control is only available in Windows Application projects, and is disabled in Web projects. At run time, the UserDesignerControl allows end users to create their own custom reports.
Data Dynamics Reports also includes a compiled Report Designer application for your convenience which you can use or distribute. You can open it from the Start menu, or find it in the installation folder under Assemblies.