Thanks for help. In the end I discover that source code is partialy comented and I did subclass CPluginView and override necessary functions. The most important part is void * windowView (if I remember correctly) where must be attached own created window. (I’ll write better answer for that later, for now I don’t have much tme for describe it)
I resolve linking with SetDllDirectory function and AssemblyResolve for managed dll.