As of April 4, 2006, there is a bug (possible in the JIT) that makes this method fail when optimizations are turned on. It is known to affect both C# and VB. For more info... http://msmvps.com/blogs/bill/archive/2006/04/04/89234.aspx ...

If your site uses XmlHttpRequest, the Visual Studio test recorder will not be aware of those calls. As said above, you can download and install fiddler (http://www.FiddlerTool/Fiddler) to record calls made through XmlHttpRequest and AJAX (which i...