Response下载文件，中文文件名乱码问题

这个问题纠结了我半天，在网上找到了很多方法，但是都没起作用，下面是我的写法：最主要就是红色字体部分
                Response.Write("<script language=\"javascript\">document.getElementById(\"Btn_MoreExport\").disabled = false;;</script>");
                FileInfo info = new FileInfo(strFilePath);
                long fileSize = info.Length;
                Response.Clear();
                Response.Buffer = true;
                Response.ContentType = "application/x-zip-compressed";
                Response.AddHeader("Accept-Language", "zh-cn");
                Response.AddHeader("Content-Disposition", "attachment;filename=" + HttpContext.Current.Server.UrlEncode(info.Name));
                //不指明Content-Length用Flush的话不会显示下载进度   
                Response.AddHeader("Content-Length", fileSize.ToString());
                Response.TransmitFile(strFilePath, 0, fileSize);
                Response.Flush();
                Response.Close();
                info.Delete();