Doesn`t run http handler in asp.net application

I want to run my httphandler, when some user get access to image file with extentions like png, jpeg, gif and other. But i get eror 404 when i try to path. I think what server try find file on a disk, but i want use alias for access to file in my handler and newer access for real phisical file path.
Example config file:

<configuration>
  <system.web>
    <compilation debug="true" targetFramework="4.0" />
    <httpHandlers>
      <add verb="GET,HEAD" path="*.jpg" type="Startup.Shop.ImageHandler, Startup.Shop" validate="false"/>
    </httpHandlers>
    <authorization>
      <allow users="*" />
    </authorization>
  </system.web>
  <system.webServer>
    <handlers>
      <add name="ImageHandlerfor JPG" path="*.jpg" verb="GET" type="Startup.Shop.ImageHandler, Startup.Shop" resourceType="Unspecified" />
      <add name="ImageHandler for GIF" path="*.gif" verb="GET" type="Startup.Shop.ImageHandler, Startup.Shop" resourceType="Unspecified" />
      <add name="ImageHandler for BMP" path="*.bmp" verb="GET" type="Startup.Shop.ImageHandler, Startup.Shop" resourceType="Unspecified" />
      <add name="ImageHandler for PNG" path="*.png" verb="GET" type="Startup.Shop.ImageHandler, Startup.Shop" resourceType="Unspecified" />
    </handlers>
  </system.webServer>
/configuration>

Example handler class:

 public class ImageHandler : IHttpHandler, IRouteHandler
    {

        public void ProcessRequest(HttpContext context)
        {
            context.Response.ContentType = "text/plain";
            context.Response.Write("Hello World");
        }

        public bool IsReusable
        {
            get
            {
                return false;
            }
        }

        public IHttpHandler GetHttpHandler(RequestContext requestContext)
        {
            return this;
        }
    }

And more - iis server configurated as classic mode