IIS Config Error - This configuration section cannot be used at this path

Question

I am getting the below error when I try to run my website   The website is hosted on Windows 2012 R2   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    Error Code   0x80070021  Config Source    60       lt httpErrors errorMode  Detailed    gt   61       lt handlers gt   62         lt remove name  ExtensionlessUrlHandler-Integrated-4 0    gt    Below is what all I have tried    Installed  Net 3 5 using  Add features and roles  in IIS In the applicationHost file I have made the below code changes   Changed sections handlers   modules  anonymousAuthentication           basicAuthentication etc  overrideModeDefault from  Deny  to  Allow   Have done  HTTP Activation  in  Net 3 5 as well as 4 5    Below is my web config file handler code    lt handlers gt     lt remove name  ExtensionlessUrlHandler-Integrated-4 0   gt     lt remove name  OPTIONSVerbHandler   gt     lt remove name  TRACEVerbHandler   gt     lt add name  ExtensionlessUrlHandler-Integrated-4 0  path      verb     type  System Web Handlers TransferRequestHandler  preCondition  integratedMode runtimeVersionv4 0   gt   lt  handlers gt     Installed all the features in features windows in this path  Internet Information Service --  World Wide Web Services --  Application development features --  All but CGI have been enabled  In feature delegation ASP was Read Only earlier  I have changed it to Read Write Unlocked handlers using command prompt   But I am still unable to get rid of the error   My local instance is working perfectly fine  Also  I have a development server on which this website is working  only in my production server I am getting this error    Please help me to find out what might be causing this problem

User · Answer

When I tried these steps I kept getting error:

Search for "Turn windows features on or off"
Check "Internet Information Services"
Check "World Wide Web Services"
Check "Application Development Features"
Enable all items under this

Then i looked at event viewer and saw this error:Unable to install counter strings because the SYSTEM\CurrentControlSet\Services\ASP.NET_64\Performance key could not be opened or accessed. The first DWORD in the Data section contains the Win32 error code.

To fix the issue i manually created following entry in registry:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\ASP.NET_64\Performance

and followed these steps:

Search for "Turn windows features on or off"
Check "Internet Information Services"
Check "World Wide Web Services"
Check "Application Development Features"
Enable all items under this

User · Answer

Below is what worked for me   In IIS Click on root note  quot LAPTOP        quot   From option being shown in middle tray  Click on Configuration editor at bottom  In Top Drop Down select  quot system webServer handlers quot   At right window in Section Unlock Section

User · Answer

I had an applicationhost config inside my project folder  It seems IISExpress uses this folder  even though it displays a different file in my c  users folder   vs config applicationhost config

User · Answer

Click on your project properties  go to the web section  from the Servers section  change from IIS express to Local IIS  it will create a virtual directory for you

User · Answer

I came across this thread and solve the issue by below steps  My problem may be different  Hope this can help some one    In Turn windows feature on and off navigate to server roles and select the least below mentioned items      Cheers

User · Answer

I think the better way is that you must remove you configuration from your web config  Publish your code on the server and do what you want to remove directly from the IIS server interface   Thanks to this method if you sucessfully do what you want  you just have to get the web config and compare the differences  After that you just have to post the solution in this post  -P

User · Answer

Follow the below steps to unlock the handlers at the parent level   1  In the connections tree in IIS   go to your server node and then to your website   2  For the website  in the right window you will see configuration editor under Management   3  Double click on the configuration editor    4  In the window that opens  on top you will find a drop down for sections  Choose  system webServer handlers  from the drop down   5  On the right side  there is another drop down  Choose  ApplicationHost Config    6  On the right most pane  you will find  Unlock Section  under  Section  heading  Click on that   7  Once the handlers at the applicationHost is unlocked  your website should run fine

User · Answer

Most IIS sections are locked by default but you can  unlock  them by setting the attribute overrideModeDefault from  Deny  to  Allow  for the relevant section group by modifying the ApplicationHost config file located in  windir  system32 inetsrv config in Administrator mode

User · Answer

Heres what worked for me  had a similar problem on my new laptop which had windows 10    Search for  Turn windows features on or off  Check  Internet Information Services  Check  World Wide Web Services  Check  Application Development Features  Enable all items under this   try again  now it should work

[asp.net] IIS Config Error - This configuration section cannot be used at this path

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