After you install the Microsoft .NET Framework Software
Development Kit (SDK), Microsoft Visual Studio .NET 2002, Visual Studio .NET 2003, or Visual Studio 2005, Microsoft Internet Information Service (IIS)
mappings are created to associate the new file extensions and settings for ASP.NET.
If you did not have IIS installed when you ran the SDK or Visual Studio Setup,
or if you uninstalled and reinstalled IIS after you ran the SDK or Visual
Studio Setup, those settings will not be in place. You experience unexpected
behavior when you try to view ASP.NET pages.
When you try to
create a new ASP.NET Web application in Visual Studio .NET 2003, you receive
the following error message:
Visual Studio .NET has
detected that the specified Web server is not running ASP.NET version 1.1. You
will be unable to run ASP.NET Web applications or
To fix IIS mappings for
ASP.NET, run the Aspnet_regiis.exe utility:
- Click Start, and then click
- In the Open text box, type cmd, and then press ENTER.
- At the command prompt, type
the following, and then press ENTER:
"%windir%\Microsoft.NET\Framework\version\aspnet_regiis.exe" -i In this path, version represents the version number of the .NET Framework that you
installed on your server. You must replace this placeholder with the actual
version number when you type the command.
For more information about the Aspnet_regiis.exe utility, run
this .exe file with -?
as an argument.
For a description of the symptoms that are typically
related to ASP.NET and IIS application mappings that are not configured
properly, click the following article number to view the article in the Microsoft Knowledge Base:
ASP.NET pages exhibit unexpected behavior because the server-side code is not processed