Although this configuration works on Windows Server 2008 R2, it is unsupported by Microsoft. Use at your own risk.

Use these steps to install ASP.NET 1.1 on either Windows Server 2008 x64 SP2, or Windows Server 2008 R2.

Short version:

1. Follow all of the steps in How to install ASP.NET 1.1 with IIS7 on Vista and Windows 2008
2. Then implement this workaround for an acknowledged bug: Workaround: Running ASP.NET 1.1 on Vista SP2/WS08 SP2

My summary:

1. Ensure that the “IIS Metabase Compatibility” Role Feature is installed in IIS
2. Download and install:
   • .NET Framework 1.1
   • .NET Framework 1.1 SP1
   • ASP.NET Security update for .NET 1.1 SP1
3. Make sure ASP.NET 1.1 is enabled under ISAPI and CGI Restrictions
   • In my experience, this has already been enabled after installation
4. Add this IgnoreSection handler to the <configSections> element on the .NET 1.1 machine.config, located in %windir%\Microsoft.NET\Framework\v1.1.4322\CONFIG

   • <section name="system.webServer" type="System.Configuration.IgnoreSectionHandler,
         System, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
     </configSections>

     Continue reading Running ASP.NET 1.1 on Windows Server 2008 R2 →