First, the testing environment we will use here is Windows
XP Professional (with IIS installed), Visual Studio 2005. Second, we assume
that you have installed the three components of the ASP.ET AJAX framework: ASP.NET
AJAX Essential Components, ASP.NET AJAX Futures January CTP, and ASP.NET AJAX
Control Toolkit (although not very necessary, but I highly recommend installing
it for related comparison). Third, to follow along with the examples, you need
to download the source files accompanying this article (see the downloads
section at the end of the article).