My guess is that you may have installed Visual Studio before IIS, and it needs to be registered. Try this:
Run: aspnet_regiis -i
You should find it in the 1.1 Framework directory
(usually something like c:\Windows\Microsoft.NET\Framework\v1.1.4322)
~~Bonnie
>hi friends
>
>i've a problem when i try create a web application showme a error :
>
>the web server reported the following error when attemping to create or open the web project located a the following url http://localhost/agenda http/1.1 503 service unavailable.
>
>how i make to resolve that problem. than'u