Some types of plug-ins feature special data or rendering, and are intended to be used with a particular website. Others are intended to enhance the experience of all websites, and run every time a user runs VE3D. Most of the samples given so far have been about the former, where the test html page references the plug-in you wish to load. Today we’ll talk about the latter. In addition, there is currently a limitation that plug-ins must be installed in the GAC in order to run. This is true regardless of what category the plug-in falls under. End users of a plug-in will need a way of installing the plug-in. Fortunately writing an installer is easy with Visual Studio.