I just run into an odd problem. For testing purpose I wanted to run a ASP.Net application with some privileged account. So just for the heck I created a new app-pool in IIS and assigned this pool to my app. Then I set the identity of the app pool to my own domain-account – this should definitely work, since I’m a local administrator on this dev-machine – who if not the admin should run an app?

But the eventlog stated something strange: the identity of my newly created app pool is invalid! And accessing the app kinda proves this: the app pool is being deactivated in IIS.

But now to the rescue: the identity setup in the app-pool must be a member of the local IIS_WPG group.