Thank you all for your assistance.. The actual goal was to find a way to change unmanaged c++ code (.h and .lib file) to a unmanaged .dll and then create a c# wrapper..
It took a lot of very obscure searching but i managed to find a page that did exactly what i needed in a guide form.
At the bottom of the page, there is a link in the line "Here is the source code i made" for those who want to skip the programming parts and just use the TN Gaming Vest in C#.