How to enable Windows Authentication in IIS Express

Unlike IIS Server, IIS Express doesn’t support Windows Authentication by default. You can enable the Windows Authentication in IIS Express by modifying the applicationhost.config under the “C:\Users[username]\Documents\IISExpress\config” directory. You need to find the windowsAuthentication element under authentication, and change the value of attribute enabled to true.

ASP.Net application with Windows Authentication in IIS Express

Happy Programming.