I\'m running Windows 7 Ultimate (64 bit) using Visual Studio 2010 RC. I recently decided to have VS run/debug my apps on IIS rather than the dev server that comes with it. <
I had used the WebDeploy IIS Extension to import my websites from IIS6 to IIS7.5, so all of the IIS settings were exactly as they had been in the production environment. After trying all the solutions provided here, none of which worked for me, I simply had to change the App Pool setting for the website from Classic to Integrated.