What is the enhanced ajax support for Asp.net in 3.5 as compared to the previous versions of Asp.net ?
Previously developer has to install AJAX control library separately that does not come from VS, but now if you install Visual Studio 2008, you can built-in AJAX control library. This Ajax Library contains plenty of rich AJAX controls like Menu, TreeView, webparts and also these components support JSON and VS 2008 contains in built ASP.NET AJAX Control Extenders.
yes ajax support asp.net 3.5 and 4.0