WEB网页上下载快捷方式到本地

js代码：

   //下载桌面图标
        function returnDown() {
            var CompanyName = "xxxxxxxx";
            var ProductNikeName = "xxxxxxxx";
            var Favicon = "a/favicon.ico";   //一定要是 网站根目录下的ico图标
            var browserType = "MSIE";
            if (isFirefox = navigator.userAgent.indexOf("Firefox") > 0) {
                browserType = "Firefox";
            }
            if (CompanyName.length == 0) {
                return;
            } else if (ProductNikeName.length == 0) {
                return;
            } else {
                window.open("bs/down_shortcut.aspx?CompanyName=" + unicode(CompanyName) + "&ProductNikeName=" + ProductNikeName + "&baseurl=" + window.location.host + "/&url=" + window.location + "&browserType=" + browserType + "&Favicon=" + Favicon);
            }
        }

down_shortcut.aspx 代码：

///   <summary> 
    ///   文件下载 
    ///   </summary> 
    ///   <param   name= "FullFileName "> </param> 
    private void FileDownload(string FileName, string browserType)
    {
        try
        {
            if (!File.Exists(Server.MapPath(FileName)))
            {
                return;
            }
            else
            {
                string filePath = Server.MapPath(FileName);//路径
                //以字符流的形式下载文件 
                FileStream fs = new FileStream(filePath, FileMode.Open);
                byte[] bytes = new byte[(int)fs.Length];
                fs.Read(bytes, 0, bytes.Length);
                fs.Close();
                string FileNameUrl = FileName;
                if (FileName.IndexOf(".link") > -1)
                    FileNameUrl = FileName.Split('.')[0] + ".url";
                Response.ContentType = "application/octet-stream";
                //通知浏览器下载文件而不是打开 
                if (browserType == "Firefox")
                    Response.AddHeader("Content-Disposition", "attachment; filename=" + (FileNameUrl));
                else
                    Response.AddHeader("Content-Disposition", "attachment; filename=" + HttpUtility.UrlEncode(FileNameUrl, System.Text.Encoding.UTF8));
                Response.BinaryWrite(bytes);
                Response.Flush();
                Response.End();
            }
        }
        catch { return; }

    }
    /// <summary>
    /// 生成快捷方式文件
    /// </summary>
    /// <param></param>
    /// <param></param>
    /// <returns></returns>
    private bool createFile(string FileName, string strurl, string baseurl, string Favicon)
    {
        try
        {
            if (File.Exists(Server.MapPath(FileName)))
            {
                return true;
            }
            else
            {
                FileStream fs = new FileStream(Server.MapPath(FileName), FileMode.CreateNew);
                StreamWriter sw = new StreamWriter(fs);
                sw.WriteLine("[DEFAULT]");
                sw.WriteLine("BASEURL=http://" + baseurl);
                sw.WriteLine("[InternetShortcut]");
                sw.WriteLine("URL=" + strurl);
                sw.WriteLine("IDList=");
                sw.WriteLine("IconFile=http://" + baseurl + Favicon);
                sw.WriteLine("IconIndex=1");
                sw.WriteLine("[{000214A0-0000-0000-C000-000000000046}]");
                sw.WriteLine("Prop3=19,2");
                sw.Close();
                fs.Close();
                return true;
            }
        }
        catch (Exception ex)
        {
            return false;
        }
    }