Error Viewing ASP.NET applications After Installing IIS7.5


I get the following error when I try to access a application on my local machine. Anyone have any ideas?

HTTP Error 500.19 - Internal Server Error The requested page cannot be accessed because the related configuration data for the page is invalid.

Module IIS Web Core Notification BeginRequest Handler Not yet determined Error Code 0x80070021 Config Error This configuration section cannot be used at this path. This happens when the section is locked at a parent level. Locking is either by default (overrideModeDefault="Deny"), or set explicitly by a location tag with overrideMode="Deny" or the legacy allowOverride="false". Config File \?\C:\inetpub\wwwroot\TravelProduct\web.config Requested URL http://localhost:80/TravelProduct/CreateNewQuote.aspx Physical Path C:\inetpub\wwwroot\TravelProduct\CreateNewQuote.aspx Logon Method Not yet determined Logon User Not yet determined
asked on Stack Overflow Jun 5, 2009 by (unknown user) • edited Jul 21, 2009 by Helen

4 Answers


please check if you deployed your application properly : Deploying an ASP.NET Server (IIS 7)

answered on Stack Overflow Oct 27, 2009 by Anwar Chandra

Please check your web.config file, you must have added some configuration setting which is trying to overwrite the applicationHost.config settings.


answered on Stack Overflow Nov 4, 2009 by Vivek

check out my answer at Handler not yet determined error

I did not realize url rewrite was not installed at the first time :)

answered on Stack Overflow Nov 9, 2009 by √∂zkan pakdil • edited May 23, 2017 by Community

Reinstall your server for iss using this command:

X:\WINDOWS\Microsoft.NET\Framework\v(.NET Version)\aspnet_regiis.exe -i

This may solve your problem

answered on Stack Overflow Sep 2, 2009 by emdadgar2

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