ASP.NET AJAX is a framework for quickly creating efficient and interactive Web applications that work across all popular browsers.

With ASP.NET AJAX you can:
  • Create next-generation interfaces with reusable AJAX components.
  • Enhance existing pages using powerful AJAX controls with support for all modern browsers.
  • Access remote services and data from the browser without tons of complicated script.
  • Take advantage of the improved efficiency and ease of use in Visual Studio 2008, with its built-in support for ASP.NET AJAX, improved JavaScript support, and a new Web page designer interface.