Thank you for this wonderful opportunity.
I have reviewed your project requirements very carefully. I feel that I'm exact match for this position.
I am a C# expert.
I have enought experience in C#, .NET, C++, Dll and SQLite.
I can implement what you want in a short time.
If you hire me for this project, I will guarantee the qualification of my result and I will try hard to satisfy you.
Best regards.