Configuring ASP.NET 1.1 websites on IIS 7.0

If you want to run your existing ASP.NET 1.1 websites under .NET Framework v1.1 please read this post Configuring .NET Framework 1.1 on windows vista and follow the below steps. 1. Open IIS 7 by going through Control Panel/Administrative Tools and please select the ISAPI and CGI Restrictions option from IIS section.