MIME Error with ASPNET under Vista (IIS7)

Problem:

HTTP Error 404.3 - Not Found

Description: The page you are requesting cannot be served because of the Multipurpose
Internet Mail Extensions (MIME) map policy that is configured on the Web server. The
page you requested has a file name extension that is not recognized, and is not allowed.

Error Code: 0x80070032

Notification: ExecuteRequestHandler

Module: StaticFileModule

Fix:

Turn on the 'Application Development Features' of IIS under Windows features.