![asp](images/asp1_thumb.jpg)
ASP.NET is a web application framework developed and marketed by Microsoft to allow programmers to build dynamic web sites, web services and web applications. It was first released in January 2002 with version 1.0 of the .NET Framework, and is the successor to Microsoft's Active Server Pages (ASP) technology. ASP.NET is built on the Common Language Runtime (CLR), allowing programmers to write ASP.NET code using any supported .NET language. ASP.NET web pages or webpage, known officially as "web forms", are the main building block for application development