Pre DotNetNuke 4.5.x Ajax / Atlas
We moved the way how to configure DotNetNuke versions pre 4.5.x to this page.
Using Ajax in DotNetNuke 4.5.x
DotNetNuke is from version 4.5.x fully compatible with Ajax.You do not have to install anything to use Ajax enabled controls.
We are enabling DNN KickStart to create and use Ajax controls.