You need to know this interface only if you want to create your own custom help provider (an advanced feature). A help provider can read data from a help source and provides methods to get help topics, to get context IDs, to open help in an external window, to get a topic URL that can be displayed by the C1DynamicHelp control, etc. There are two built-in help providers in the C1DynamicHelp: ChmProvider and NetHelpProvider which are used automatically when the HelpSource property points to a .chm or a .htm/html file, correspondingly. If you want to use another help source type (for example, MS Help 2.0) you can do it by creating your own help provider class implementing this interface.
