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

asp.net-mvc-2iis-7

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

These are the details:

ASP.NET MVC 2
ASP.NET 4 integrated pipeline
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?

Best Answer

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.

Related Solutions

Getting 404.0 error for ASP.NET MVC 3 app on IIS 7.0 / Windows Server 2008

You actually just reminded me that I needed to fix this issue in an enviroment here. If your situation is the same as mine then it's a simple fix.

Just add the following to your web config:

<system.webServer>
    <modules runAllManagedModulesForAllRequests="true" />

Edit: To provide further explanation on the issue at hand. In my case what was happening was when I added custom route mappings IIS was seeing the requests as Folder/Static File requests and thus was skipping over the ASP.NET worker process. This behaves differently under development environment generally because it is being run under the development web server which will also pass all requests through the .net process.

This Web Config entry tells IIS that you have modules that should be run on every web request even if IIS determines it to be a static file or a folder.

Routing HTTP Error 404.0 0x80070002

Just found that lines below must be added to web.config file, now everything works fine on production server too.

<system.webServer>
  <modules runAllManagedModulesForAllRequests="true" >
   <remove name="UrlRoutingModule"/>    
  </modules>
</system.webServer>

Best Answer

Related Solutions

Getting 404.0 error for ASP.NET MVC 3 app on IIS 7.0 / Windows Server 2008

Routing HTTP Error 404.0 0x80070002

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