More about Microsoft ASP.NET AJAX
Prepare 1.36 MB on the hard drive for setting up Microsoft ASP.NET AJAX v1.0.61025; bear in mind that it can be also found under the title of ASP.NET AJAX Extensions. It is a free utility by Microsoft and you're welcome to use it. You can find it in Software Development category, specifically Webmaster. The direct download link of the program is safe to use.