In addition to the EasyHL7 ActiveX Toolbox DLLs, the installation also installs the "Demo" application EasyHL7.exe.  You will use this application to look at some of the user interface features of the toolbox, create and edit HL7 vendor definitions and also to register your system should you purchase a developer's license.  On computers that have been registered and licensed, you will also use the demo application to create 'runtime' licenses which you use when deploying applications you create with the toolkit to another computer.