ASP.NET AJAX is a free FRAMEWORK to implement Ajax in asp.net web applications, for quickly creating efficient and INTERACTIVE Web applications that work across all popular browsers.

The Ajax Framework is powered with

1-Reusable Ajax Controls
2-Support for all modern browsers
3-Access remote services and data from the browser WITHOUT tons of complicated script.

Versions of Ajax release

1-ASP.NET Ajax Framework 1.0 (earlier release to this was called the ATLAS)
2-ASP.NET Ajax Framework 1.0 was available as a separate download for ASP.NET 2.0

ASP.NET AJAX is a free framework to implement Ajax in asp.net web applications, for quickly creating efficient and interactive Web applications that work across all popular browsers.

The Ajax Framework is powered with

1-Reusable Ajax Controls
2-Support for all modern browsers
3-Access remote services and data from the browser without tons of complicated script.

Versions of Ajax release

1-ASP.NET Ajax Framework 1.0 (earlier release to this was called the Atlas)
2-ASP.NET Ajax Framework 1.0 was available as a separate download for ASP.NET 2.0