For many months I have had a vb.net program working on my computer using a windows media player dll. Suddenly, the Windows Media Play will not work and I cannot add a new one to the project. When I try to add a new WMP tool box item to the program I get a long error message which is attached. Does anyone know what I can do to restore the WMP? Also, if I start a new project and add the WMP it is added properly without any error messages.