http://blogs.msdn.com/b/webdev/archive/2008/10/03/troubleshooting-visual-studion-2008-design-view-hangs-issues.aspxOver the last few months we've collected information on various issues related to design view not working in Visual Studio 2008 or Visual Web Developer Express 2008. Here is list of known issues and possible solutions: Microsoft Visual Studio Web Authoringen-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)http://blogs.msdn.com/b/webdev/archive/2008/10/03/troubleshooting-visual-studion-2008-design-view-hangs-issues.aspx#9256168Mon, 29 Dec 2008 23:56:02 GMT91d46819-8472-40ad-a661-2c78acb4018c:9256168Chris Fuess<p>How do you run the WebDesignerCore_KB945140.msp file? &nbsp;</p> <div style="clear:both;"></div><img src="http://blogs.msdn.com/aggbug.aspx?PostID=9256168" width="1" height="1">