In order to associate topics from your Help file with form controls, you must specify the source Help file.
You can do this from the C1DynamicHelp Tasks menu by setting the HelpSource property to any *.chm file or NetHelp *.htm file (use the default.htm or the file name that was used as the base URL for the NetHelp target.). In this example, we will use the C1Sample.chm installed with DynamicHelp for WinForms, by default.