ASP.NET MVC and mixed mode authentication

Question

I have a scenario whereby I require users to be able to authenticate against an ASP.NET MVC web application using either Windows authentication or Forms authentication. If t

Answer 1

I know this is an old post - but everything lives forever on the internet!

Anyway, I had to move an old website from IIS6 to IIS8. This is a WebForms website, but I assume this very simple solution is the same.

I received the error : Unable to cast object of type 'System.Security.Principal.WindowsIdentity' to type 'System.Web.Security.FormsIdentity'.

All I did was create a new application pool for the website. When creating this, I set the Managed pipeline mode to 'Classic'. (Read more here - http://www.hanselman.com/blog/MovingOldAppsFromIIS6ToIIS8AndWhyClassicModeExists.aspx) Dont forget to set the website's application pool to the new pool you just created.