C# (Computer program language) Microsoft .NET Framework 45 Development 40 Microsoft .NET 38 Object-oriented programming (Computer science) 27 Computer software 26 Application software 19 Programming 19 Computer games 18 Internet programming 18 Microsoft Visual C# .NET 18 Visual programming languages (Computer science) 16 Web site development 15 Visual programming (Computer science) 13 Microsoft Visual C++ 10 Computer programming 8 C++ (Computer program language) 7 Java (Computer program language) 7 Microsoft Visual BASIC 6 Microsoft Windows (Computer file) 6 Programming languages (Electronic computers) 6 C (Computer program language) 5 Design 5 Testing 5 Web sites 5 Algorithms 4 C(Computer program language) 4 Data processing 4 Microsoft .Net Framework 4 Numerical analysis 4