1, asp.net 2.0 AJAX Extensions
This is asp.net ajax core files, is the server-side implementation of the necessary files.
Download Address: Http://download.microsoft.com/download/5/4/6/5462bcbd-e738-45fa-84ca-fa02b0c4e1c2/ASPAJAXExtSetup.msi
Download Address two: http://www.asp.net/ajax/downloads/
2. asp.net AJAX control Toolkit
But its controls are very small, so we needasp.net AJAX control ToolkitProvides support for more controls. The ASP.net AJAX Control Toolkit contains the source version, as well as the source code version. If you just want to use these controls, just download Ajaxcontroltoolkit-nosource.zip, and if you want to study these controls, you can download the Ajaxcontroltoolkit.zip that contains the source code.
Download Address: http://www.codeplex.com/AjaxControlToolkit/Release/ProjectReleases.aspx?ReleaseId=1425
3, asp.net 2.0 AJAX futures January CTP
ASP.net 2.0 AJAX Futures is the latest control for ASP.net Ajax server-side implementations.
Download Address: Http://download.microsoft.com/download/e/c/e/eceb17c3-4bef-430c-8b50-ce36ee435b70/ASPAJAXCTP.msi
4. Microsoft AJAX Library
This is the installation package for the client implementation, and you do not need to download the package if you choose the server-side implementation. Now, the latest version is 3.5.
Download Address: http://msdn.microsoft.com/en-us/asp.net/dd162267.aspx
ChooseI Acceptcan be downloaded.