C# optical character recognition library
A simple example (you can use the your_image.bmp from the repository)
// OCR engine
TextRecognition tr = new TextRecognition();
// Create a standard windows font, Tahoma 8px
var font = new StandardFont("Tahoma", 8, FontStyle.Regular);
// Add it to the engine
tr.AddFont(font);
// Load an image
Bitmap image = new Bitmap("your_image.bmp");
// Recognize text
string recognized = tr.Recognize("Tahoma#8", image);