public void ProcessRequest(HttpContext context) { context.Response.ContentType = "application/octet-stream"; HttpRequest req = context.Request; string filename = req.Url.AbsolutePath; string userid = string.Empty; if (HttpContext.Current.Request.Cookies != null && HttpContext.Current.Request.Cookies["userid"] != null) { userid = HttpContext.Current.Request.Cookies["userid"].Value; } if (userid == "1") { string uuu = context.Server.MapPath(filename); context.Response.TransmitFile(uuu); } else { string u2 = context.Server.MapPath("default.rar"); context.Response.WriteFile(u2); } }