Disabling script debugging in VS 2008 + IE8
If you experience terrible performance and constant refreshing of a Script Documents node when using the Visual Studio Debugger, follow the instructions here Work around: This work around requires the Silverlight 2 Tools for Visual Studio 2008 SP1 to be installed. So if you don't have these tools installed, you can download them from Microsoft ( http://www.microsoft.com/downloads/details.aspx?familyid=C22D6A7B-546F-4407-8EF6-D60C8EE221ED&displaylang=en ). If this is not an option for you, there is some alternative work arounds at the bottom of this blog post. Right click on your project and open up project properties Go to the 'Start Options' sheet, and click the 'Silverlight' button at the bottom of the screen. Because the debugger cannot debug both Silverlight code and Script code at the same time, this will disable Script debugging and therefore avoid the problem.