ASP.NET AJAX is a free framework for quickly creating a new generation of more efficient, more interactive and highly-personalized Web experiences that work across all the most popular browsers.
With ASP.NET AJAX, you can:
* Create next-generation interfaces with reusable AJAX components.
* Enhance existing Web pages using powerful AJAX controls with support for all modern browsers.
* Continue using Visual Studio 2005 to take your ASP.NET 2.0 sites to the next level.
* Access remote services and data directly from the browser without writing a ton of complicated script.
* Enjoy the benefits of a free framework with technical support provided by Microsoft.