Save dialog box when downloading a .swf file

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C#

ASP.NET

Hi Guys

I am trying to use below code to show a save dialog box when a link with .swf file is clicked, But the problem is that its not working.
Can anyone share the code to show a save dialoge box when a link is clicked with .swf file extention. Please see the below code, I am calling it on htmlanchor click event. Let me know if there are any other soltions..

try
{
    HtmlAnchor anchor = (HtmlAnchor)sender;
    System.IO.FileInfo targetfile = new System.IO.FileInfo(anchor.HRef);

    if (targetfile.Exists)
    {
        Response.Clear();
        Response.AddHeader("Content-Disposition", "attachment; filename=" + targetfile.Name);
        Response.AddHeader("Content-Length", targetfile.Length.ToString());
        Response.ContentType = "application/x-shockwave-flash";
        Response.WriteFile(targetfile.FullName);
    }
}
catch (Exception ex)
{
    LogException(ex);
}