How to configure your website for using Ajax (for Windows 2008 Hosting Plans)
Note: If you want to use ASP.Net "Integrated PipeLine" version (under any circumstance) you need to follow this instruction in order to use Ajax on your hosting plan otherwise there is no reason to make any change on your plan
You should add the below code in your "Web.Config" file :
<system.webServer><handlers>
<add name="ScriptResource" preCondition="integratedMode" verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
</handlers>
</system.webServer>