Why is ASP.NET not running on localhost? I can only run .aspx pages on temporary server of VWD Express, not on IIS on localhost server (classic .asp pages run fine). I have Windows XP Professional.
Is it because I haven't installed .NET framework before I installed VWD Express?
When I look into IIS settings, I see ASP.NET tab and the version is 2.0.50727

The error I get when I run some .aspx page using IIS is:

Server Application Unavailable

The web application you are attempting to access on this web server is currently unavailable.  Please hit the "Refresh" button in your web browser to retry your request.

Administrator Note: An error message detailing the cause of this specific request failure can be found in the application event log of the web server. Please review this log entry to discover what caused this error to occur.


and the log file shows only:

#Software: Microsoft Internet Information Services 5.1
#Version: 1.0
#Date: 2008-07-18 11:09:03
#Fields: time c-ip cs-method cs-uri-stem sc-status
11:09:03 127.0.0.1 GET / 200
11:09:05 127.0.0.1 GET /30082008/ 200
11:09:18 127.0.0.1 GET /30082008/knjiga.aspx 500
11:18:35 127.0.0.1 GET / 200
11:18:38 127.0.0.1 GET /30082008/ 200
11:18:41 127.0.0.1 GET /30082008/knjiga.aspx 500

1. Can you see any error in Event Viewer?

2. Check whether ASPNET account had locked or not?

3. If both of the above looks fine, unregister and re-register aspnet using aspnet_regiis -i and restart the IIS.

Mark it as answer if it resolves the issue.

visit : http://technicalsol.blogspot.com 

 Try to register asp.net with IIS:

1. Open command prompt (Start > Run > type 'cmd' > hit enter)
2. Type the following command:
1. %windir%\Microsoft.NET\Framework\v2.0.50727\aspnet_regiis.exe -i