I\'m just putting this one out there since its a Google Zero-resulter which means I win a prize?
Cannot start IIS Express 7.5 after reinstall from one account, but I
Also, you might need to change the line
applicationDefaults applicationPool="Clr4IntegratedAppPool"
to
applicationDefaults applicationPool="Clr2IntegratedAppPool"
in the file...
C:\users\jmitchell\My Documents\IISExpress\config\applicationhost.config
if you continue to get the same error (as I did) after following the instructions on the post above. The issue being solved here is that you don't have .NET4 installed, and so are reverting to using .NET2
Thanks