ASP.NET MVC on IIS falls through to the static file handler

Question

I have a problem with an ASP.NET MVC site.

These are the details:

1. ASP.NET MVC 2
2. ASP.NET 4 integrated pipeline
3. IIS 7.5 on Windows Web Server 2008 R2

Whenever I make a request for the app I get the "HTTP Error 404.0 - Not Found"-error and the detailed error information shows it is the static file handler that reports the error:

• Module: IIS Web Core
• Notification: MapRequestHandler
• Handler: StaticFile
• Error Code: 0x80070002

meaning that the request never entered the MVC stack.

I should note that the IIS already serves a ASP.NET MVC 3 on the same app pool and a MVC 2 on a ASP.ENT 2 app pool. So it's the combo ASP.NET 2 on the ASP.NET 4 app pool that are giving me headaches.

Basically I want to upgrade the app from ASP.NET MVC 2 on a ASP.NET 2.0 app pool to a ASP.NET MVC 2 on a ASP.NET 4.0 app pool.

So any ideas?

Answer 1

I see you fixed your issue, but for anyone googling:

I had this issue and in my case I just needed to register ASP.NET 4 with IIS. I was deleting and re-adding webs to fix other issues and simply forgot to do that. The command that worked for me was:

C:\Windows\Microsoft.NET\Framework64\v4.0.30319>aspnet_regiis -i

Your own .net version may be different, especially if you are in the future, so the above path may not be exactly right.