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History: ASP.NET is a web application framework advanced by Microsoft. The framework makes it possible for programmers to write up dynamic web sites, web applications and web services. ASP.NET is create on the Common Language Runtime (CLR). The CLR allows programmers to piece together ASP.NET code using any supported .NET language.

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Subsequent to the release of Internet Information Services 4.0 in 1997, Microsoft began researching possibilities for a modern web application model that would undo well-known complaints regarding ASP, expressly with respect to separation of presentation and content and being able to set up “clean” code. Mark Anders, a manager on the IIS team, and Scott Guthrie, who had joined Microsoft in 1997 subsequent to graduating from Duke University, were tasked with determining what that model would look like.

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The introductory variation was called “XSP”, but the “X” did not genuinely stand for anything. It was decided to manufacture the imaginative platform on top of the Common Language Runtime (CLR), as it offered an object-oriented programming environment, garbage collection and other features that were seen as desirable features that Microsoft’s Component Object Model platform didn’t support.

XSP was renamed to ASP+ as it was seen as being the heir apparent of Active Server Pages. Then, in 2000, it was renamed to ASP.NET to emphasize that it rested on the foundational .NET framework.

Versions: ASP.NET 1.0 was released in January of 2002. 2.0 was released in November 2005, and 3.0 in November 2006. The current variation is 3.5, and it came out in November 2007. 4.0 is scheduled to released in the next few months.