C# PInvoke Code for C++ DLL

Hi

I'm looking for a C++/C# developer who is able to create the required PInvoke and Structures in C# to successfully call exported C++ dll functions. The C++ dll provides an interface to a Windows Driver that we have developed, but we need to be able to call this from our existing C# application to enable/disable the driver in code. We have the DLL, Sample C++ Application and header files available.