22. May 2012 22:26
Ran into this error suddenly this week for no apparent reason. My Windows 7 64-bit has been running many development websites for months, all flawlessly.
For whatever reason, I could no long open any sites in Visual Studio 2010 using the Local IIS option.
I have no idea why. I have no idea exactly when. If I open an existing solution that points to a local IIS, works just fine. But if I try to open the web project directly using the Local IIS option I get the error.
I tried uninstalling IIS 6 Compatibility and reinstall it. No workie.
I tried deleting and recreating the IIS site. I tried deleting and recreating the IIS app and the app pool. No workie.
Finally I just uninstalled IIS entirely from Windows 7. Then did a reboot. Then reinstalled IIS (including IIS 6 Compatibility). Then did another reboot.
BAM! Back in business now. Visual Studio 2010 now opens sites and applications using Local IIS just like it used.
Sure wish I knew what caused it…least I know how to fix it again should the need arise.