Visual Studio C# project

Hi,

I try to make an interface for Ni-8452 on a visual studio with C# but i cannot use directly ni845x.dll and i need to convert it to C# project. I tried to create a new dll, by using extern "C" method, i tried to convert it but i cannot make it. I use this method by using ni845x.h and .lib.

could anyone help me?

Thanks