I have c++ code that interfaces the a PC-DIO-96 board (or equivalently a USB-6509). I'd like to convert my code to c#. There are a few examples of c# code but they're very simple. I can use PInvoke from c# to call c++ functions but I'd rather use c# function calls directly. Does anyone know where I can find a listing of c# functions with appropriate namespaces and which dll's if any I need for c#? Thanks.