When you try to create or open Web Application in ASP.NET 1.1, you may 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 services."
This is a very common error when we run ASP.NET Web Aplications. You face this problem because you have not installed ASP.NET v 1.1 & your web server is configured with it. MIcrosoft has given a solution of this problem for IIS 6.0. You can see it at :
But if you are using IIS 5.1, what will you do ??? In that situation, please try this:
1. Open .NET command prompt & type
This command will install ASP.NET v1.1 & also configure your web server. When you will see the message that ASP.NET 1.1 has been successfully installed, then restart your system.
2. If after executing above command, you face that error again then follow below procedure:
Open Internet Information Services,
-> Go to default web site
-> select properties
-> Go to Web Site Tab
-> Go to Web Site Identification panel & select IP Address
-> Here If you have seleted your IP address like 192.168.1.100 then change it and choose "All Unassigned" from drop down. Also check the default port that is 80 by default for IIS Server.
-> Restart your system.
Now your application will be run fine. For more details, please follow Microsoft web site.