Thank you, I guess I missed your reply. I tried to port the code to C# with a converter and manual changes. It takes much time specifically due to C# limited schema of compiler instructions (e.g. #Define) comparing to C++. I can send you the code, if you want to check it or if you can give me clues how to quickly prepare it.
Also I tried using TIBIMP utility in .Net that produces a a runtime callable wrapper (.Net compatible library) from COM Dlls. But it raises an error and mentiones that this is not a valid type library (error TI1002). I wonder if you can build a dll with type library embedded or a COM compatible dll. So every .Net programmer can easily create a a runtime callable wrapper (RCW) of fuzzylite and use it.