Failed to load resource: the server responded with a status of 500 (Internal Server Error) sys is n

Hi kailas,

Refer the below link.

http://stackoverflow.com/questions/11288796/asp-net-ajax-client-side-framework-failed-to-load-when-put-the-scriptmanager-on

http://stackoverflow.com/questions/19180684/failed-to-load-resource-the-server-responded-with-a-status-of-500-internal-ser

Thanks Dharmendra it seem to be fixed, but I want more about what purpose thats used and why following block work for me, I mean what is purpose of following block,

<handlers>
  <remove name="WebServiceHandlerFactory-Integrated"/>
  <remove name="ScriptHandlerFactory"/>
  <remove name="ScriptHandlerFactoryAppServices"/>
  <remove name="ScriptResource"/>
  <add name="ScriptHandlerFactory" verb="*" path="*.asmx" preCondition="integratedMode" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
  <add name="ScriptHandlerFactoryAppServices" verb="*" path="*_AppService.axd" preCondition="integratedMode" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
  <add name="ScriptResource" verb="GET,HEAD" path="ScriptResource.axd" preCondition="integratedMode" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
</handlers>