03-13-2012, 06:47 AM
ASP.NET is a web application framework developed and marketed by Microsoft. It was released in January 2002 with version 1.0 of the .NET Framework. It is built on the CLR (Common Language Runtime) allowing programmers to write ASP.NET code using any supported .NET language. There are other file extensions associated with different versions of ASP.NET, such as asax, ashx, browser, config, sitemap, skin, vbhtml and many others. ASP.NET aims for performance benefits over other script-based technologies by compiling the server-side code to one or more DLL files on the web server. Microsoft has released some extension frameworks that plug into ASP.NET and extend its functionality, such as ASP.NET AJAX and ASP.NET MVC Framework.