Route of ashx filer (vb.net 2010)

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VB

ASP.NET

Visual-Studio

VS2010

, +

I have a problem, I made an imagehandler (ashx file) which works fine.

But now I would like to have search engine friendly url to the pictures:

www.site.dk/imagehandler.ashx?number=2255
becomes:
www.site.dk/images/2255

My problem is that Route in Global.asax dosen works with ashx files!!!

I've searched a lot online (3 days now) and found several examples that work, but they all write in c# and I'm working in vb (vs. 2010)
When I try to translate the codes to VB (I use Instant_VB) then codes is full of errors.

I hope that there is another who has had the same problem ... who can show a working sample in VB.

Below is a code that I can get to work in C#: (here is ashx file turned into a cs file - that ok)

//****************************************** NumberRouteHandler.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Routing;
namespace Web
{
    public class NumberRouteHandler : IRouteHandler
    {
        public IHttpHandler GetHttpHandler(RequestContext requestContext)
        {
            return new NumberToImageHandler();
        }
    }
}
//****************************************** NumberToImageHandler.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using Microsoft.Web;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
namespace Web
{
    public class NumberToImageHandler : ImageHandler
    {
        public NumberToImageHandler()
        {
            base.ContentType = ImageFormat.Png;
            base.EnableClientCache = false;
        }
public override ImageInfo GenerateImage(System.Collections.Specialized.NameValueCollection parameters)
        {
            string numberText = HttpContext.Current.Request.RequestContext.RouteData.Values["number"] as string;
            if (string.IsNullOrEmpty(numberText))
                numberText = "1";
            MemoryStream ms = new MemoryStream(File.ReadAllBytes("C:\\z2.jpg"));
            var img = Image.FromStream(ms);
          return new ImageInfo(img);
        }
    }
}
//****************************************** Global.asax
Protected Sub Application_Start()
    RouteTable.Routes.Add(New Route("images/{*number}", New NumberRouteHandler()))
End Sub