The WebResource.axd handler must be registered in the configuration to process this request.

Document ID : KB000089089
Last Modified Date : 14/04/2018
Show Technical Document Details
Issue:
The WebResource.axd handler must be registered in the configuration to process this request.
Resolution:

Symptoms

After installing the Web Userinterface on IIS you get the following error:

Server Error in '/' Application.


The WebResource.axd handler must be registered in the configuration to process this request.
<!-- Web.Config Configuration File -->
<configuration>
   <system.web>
       <httpHandlers>
           <add path="WebResource.axd" verb="GET" type="System.Web.Handlers.AssemblyResourceLoader" validate="True" />
       </httpHandlers>
   </system.web>
</configuration>

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. 

Exception Details: System.InvalidOperationException: The WebResource.axd handler must be registered in the configuration to process this request.

<!-- Web.Config Configuration File -->

<configuration>
   <system.web>
       <httpHandlers>
           <add path="WebResource.axd" verb="GET" type="System.Web.Handlers.AssemblyResourceLoader" validate="True" />
       </httpHandlers>
   </system.web>
</configuration>

 

 

 

 

Resolution

 

 

Some of the prerequesite software components are not installed.

Please check the following components:
*) Open the Server Manager (Start -> Administrative Tools -> Server Manager) and go to Roles
*) Verify if following components are installed:
  
Internet Information Server Version 7.5 with the following roles installed:

Web Server
Common HTTP Features
Static Content
Default Document
HTTP Errors
HTTP Redirection
Application Development
ASP.NET
.NET Extensibility
ISAPI Extensions
ISAPI Filters
Security
Request Filtering
Performance
Static Content Compression
*) Open the Server Manager (Start -> Administrative Tools -> Server Manager) and go to Features

Internet Information Server Version 7.5 with the following features installed:
.NET Framework 3.5.1 Features
.NET Framework 3.5.1
WCF Activation
HTTP Activation
Non-HTTP Activation
Windows Process Activation Service
Process Model
.NET Environment
Configuration APIs