ASP.NET is a web application framework developed and marketed by Microsoft, that programmers can use to build dynamic web sites, web applications and web services.Microsoft .NET Framework is a software component that is a part of Microsoft Windows operating systems. It has a large library of pre-coded solutions to common programming problems and manages the execution of programs written specifically for the framework,c# (see section on name, pronunciation) is an object-oriented programming language developed by Microsoft,Ajax (programming) (Asynchronous JavaScript and XML), a technique used in web application development,Visual Basic .NET (VB.NET) is an object-oriented computer language that can be viewed as an evolution of Microsoft's Visual Basic (VB) implemented on the Microsoft .NET framework,