I installed Visual studio 2005 team edition for software testers, but it cannot automatically detect the hidden form fields while recoding the web test. Please advice how could I get this functionality works? thanks. as per online document (http://msdn2.microsoft.com/en-us/library/ms182539(VS.80).aspx) " the Web Test Recorder automatically detects the use of hidden form fields. The extraction rule will capture the hidden field values in the context of the Web test. The hidden field values that were sent back to the Web server can be replaced with content-binding to those context parameters. This allows the test to use the correct hidden field values at runtime which is necessary for hidden fields that contain unique identifiers including VIEWSTATE" -- wgf