Article ID: 942079 - View products that this article applies to.
You have a Web site that is hosted on Internet Information Services (IIS) 7.0. When you visit this Web site, you may receive an error message that resembles the following:
Server Error in Application "application name"
HTTP Error 401.4 – Authorization failed by filter
Description of HRESULT # The operation completed successfully.
This problem may occur if an ISAPI filter that is running on the Web server causes the authentication process to fail. This problem may also occur if the ISAPI filter denies the IIS request.
To resolve this problem, follow these steps: