The problem is that the application, an executable installed in it's own folder under C:\Program Files\ must be able to be found from AutoCAD ...
My current solution is: Start the application from the executable or from a shortcut. (the AutoCAD menu uses the "startapp" function to start the program) ... thus if AutoCAD cannot find the program, it cannot start it ... hard codingthe path is not an option either since the user might change the installation folder during an install.
Dino .. thanks for the screen shot ..