VS2005 and VS2008 Wizards Pop Up Script Errors after installing IE8

The Visual Studio and Internet Explorer teams discovered an issue affecting some of the code wizards in Visual Studio after installing IE8. Visual Studio hosts the browser control to implement the code wizards and the custom security manager that is part of VS doesn’t expect a request from IE about an URLACTION that wasn’t previously routed through the security manager.

The Visual Studio team have posted a workaround on their blog.