"Unable to start debugging on the webserver. Debugging failed because integrated windows authentication is not enabled."

Problem
Can't debug website, when it compiles this message appears: "Unable to start debugging on the webserver. Debugging failed because integrated windows authentication is not enabled."

Architecture
Visual Studio Web Developer Express 2005
IIS 6.0

Solution

• Open IIS
• Right Click Web Project
• Click Properties
• Select "Document Security" tab
• Click "Edit" in the "Anonymous access and authentication control".
• Click "Integrated Windows Authentication" in the "Authenticated Access" panel (see image).