Hey Roger, The article looks good, but reading through, it acts as if I need to compile the plug-ins with the main project. What if I want to create the project, and then down the road, create a new plugin and allow my clients to buy it, and add it into the "old app". How do I dynamically load the plugins based on the DLL? Anthony

I am trying to develop a windows application that I can create add-in modules for, and then clients can purchase these add-ins at an additional cost or whatever, but besides that. I cannot figure out how to start a project like this. Does anybody have any experience with this, and would like to share some source code?