title: Web.config registration missing! in RadEditor in IIS 7.5
body: <p>I am working with RadEditor. I have purchased premium controls pack.
  Editor works fine but when we open a image manager it throw an error i.e.</p>
  
  <pre><code>Web.config registration missing!
   The Telerik dialogs require a HttpHandler registration in the web.config file. Please, use the control's Smart Tag to add the handler automatically, or see the help for more information: Controls &gt; RadEditor &gt; Dialogs &gt; Introduction
  </code></pre>
  
  <p>My webconfig file code is :</p>
  
  <pre><code>&lt;system.web&gt;
   &lt;httpHandlers&gt;
        &lt;add path="Telerik.Web.UI.WebResource.axd" verb="*" type="Telerik.Web.UI.WebResource, Telerik.Web.UI" /&gt;
        &lt;add path="Telerik.Web.UI.SpellCheckHandler.axd" type="Telerik.Web.UI.SpellCheckHandler" verb="*" validate="false" /&gt;
        &lt;add path="Telerik.Web.UI.DialogHandler.aspx" verb="*" type="Telerik.Web.UI.DialogHandler, Telerik.Web.UI" validate="false" /&gt;
      &lt;/httpHandlers&gt;
      &lt;httpModules&gt;
        &lt;add name="RadUploadModule" type="Telerik.Web.UI.RadUploadHttpModule, Telerik.Web.UI" /&gt;
      &lt;/httpModules&gt;
    &lt;/system.web&gt;
    &lt;system.webServer&gt;
      &lt;validation validateIntegratedModeConfiguration="false" /&gt;
      &lt;handlers&gt;
        &lt;add name="Telerik.Web.UI.DialogHandler.aspx" path="Telerik.Web.UI.DialogHandler.aspx" verb="*" type="Telerik.Web.UI.DialogHandler, Telerik.Web.UI" /&gt;
        &lt;add name="Telerik_Web_UI_SpellCheckHandler_axd" verb="*" preCondition="integratedMode" path="Telerik.Web.UI.SpellCheckHandler.axd" type="Telerik.Web.UI.SpellCheckHandler" /&gt;
      &lt;/handlers&gt;
      &lt;modules runAllManagedModulesForAllRequests="true"&gt;
        &lt;add name="RadUploadModule" type="Telerik.Web.UI.RadUploadHttpModule, Telerik.Web.UI" preCondition="managedHandler" /&gt;
      &lt;/modules&gt;
    &lt;/system.webServer&gt;
  &lt;/configuration&gt;
  </code></pre>
  
  <p>and i am using routing without MVC architecture with asp.net 4.0 framework. and in global.asax file code is here</p>
  
  <pre><code> routes.Ignore("{resource}.axd/{*pathInfo}");
  routes.Ignore("Telerik.Web.UI.DialogHandler.aspx");
  </code></pre>
  
  <p>ignore for telerik controls.</p>
  
  <p>these all code works fine in visual studio and run site from visual studio.</p>
  
  <p>but it throws error while we run this site in IIS 7.0 or IIS 7.5.</p>
  
  <p>and it shows a alert message and image manager page displays :</p>
  
  <pre><code>HTTP Error 500.21 - Internal Server Error
  Handler "Telerik.Web.UI.DialogHandler.aspx" has a bad module "ManagedPipelineHandler" in its module list
  </code></pre>
  
  <p>message</p>
  
  <p>How to resolve this error????? </p>