WebApi Application: Error 404.0, Handler StaticFile

Question

I just tried to deploy a WebApi application on a Windows 2008R2 with IIS 7.0, with IIS Manager untouched until now.

The App runs on our dev server (same Win and IIS version) without hassle. On the deployment server,

• .NET Framework 4.5 is installed,
• ASP.NET Feature is installed and
• Windows authentication is installed

When I call an URL that should map to ASP.NET, the error is

      HTTP Error 404.0

       Module IIS Web Code
 Notification MapRequestHandler
      Handler StaticFile
   Error code 0x80070002
Requested URL http://localhost:80/myapp/api/GetUserConfig
Physical Path C:\inetpub\wwwroot\myapp\api\GetUserConfig
 Logon Method Negotiate
   Logon User ADDOMAIN\Administrator

Handler StaticFile seems important - as far as I can tell, the cause is that ASP.NET does not correctly handle the URL. Where can I start searching for the actual root of this problem?

I should add that multiple other deployments, all in Windows 2012 environments, were successful.

Solution

Microsoft should definitely put a version at "ASP.NET" Feature in the installer.

WHen you install ASP.NET feature on Windows 2008, this enables ASP.NET 3.5, while I require ASP.NET 4.

So after having installed .NET Framework v4, I would go forward and register ASP.NET 4 with IIS:

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

Source:

https://alexanderzeitler.com/articles/HTTP-Error-4040---Not-Found-(MapRequestHandler--StaticFile)-when-deploying-WCF-Web-API-on-IIS-7x/