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

“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“

Got this error when i tried to create a new web project on my computer in my new company
Here is the solution i followed :-

• Open Visual Studio Command prompt.
• Type “aspnet_regiis -i“ and press enter.

Here is the output :-

c:\>aspnet_regiis -i
Start installing ASP.NET (1.1.4322.0).
Finished installing ASP.NET (1.1.4322.0).

Thats it now try creating a new web project it will work.

UPDATE :

Steps to reach the VS Command Prompt

1) Click Start.
2) Programs/All Programs.
3) Microsoft Visual Studio .Net 2003.
4) Visual Studio .Net Tools
5) Visula Studio .Net 2003 command Prompt.

Server versions of OS

For the Server versions of OS the above step might not work Try the following

To resolve this problem, change the status of ASP.NET 1.1 to Allowed in the Web Service Extension list in IIS 6.0. To do this, follow these steps:

1.	Click Start, point to Programs, and then click Control Panel.
2.	Double-click Administrative Tools, and then double-click Internet Information Services (IIS).
3.	Click Web Service Extensions.
4.	In the details pane, click ASP.NET v1.1.4322 in the Web Service Extension list.
5.	Click Allowed to change the status from Prohibited to Allowed.

NOTE:- There is an issue in running ASP.NET over sharepoint portal server some settings need to be made for the 2 to run.