Thank you for the thorough reply. You have confirmed what I suspected. I will just duplicate the common code into both application projects. It seems like the simplest way to go. - Preston

If you set the anchor property of the grid, then you can just set your form's size, and the grid will follow.  Measuring how big it should be is a little more complex, but you can ask the data source for a row count, as a starting point. Christian Graus - C++ MVP 'Why don't we jump on a fad that hasn't already been widely discredited ?' - Dilbert

Well, I actually expected it was the case that I could not fully duplicate the external behavior of a C++ dll, but I wanted to make sure. The C++ wrapper dll occurred to me and would be possible since we have C++ developers, but it is not a good solution. Ultimately the problem was solve in another manner. We are communicating through he standard output stream and it works great. Thanks for everyones comments.