转换能转换成功，但是在转换的时候总是显示FlashPrinter的窗口。查找资料说        //    startinfo.UseShellExecute = false;//不使用系统外壳程序启动
        //    startinfo.RedirectStandardInput = false;//不重定向输入
        //    startinfo.RedirectStandardOutput = true;//重定向输出，而不是默认的显示在dos控制台上
        //    startinfo.CreateNoWindow = true;//不创建窗口 加上这些就不显示打开的FlashPrinter窗口了。但还是行。完成代码如下

        /// <summary>
        /// 创建进程 执行Flash转换
        /// </summary>
        /// <param name="sourceFileName">原文件</param>
        /// <param name="outPutFileName">输出swf文件</param>
        /// <param name="msg">返回错误信息</param>
        /// <returns></returns>
        bool CreateProcessExec(string sourceFileName,string outPutFileName,out string msg)
        {
            bool bl=false;
            try
            {
                string flashPrinter = OperString.GetFlashPath();//FlashPrinter的地址
                Process pss = new Process();
                pss.StartInfo.FileName = flashPrinter;
                pss.StartInfo.Arguments = string.Format("{0} {1} -o {2}", flashPrinter, sourceFileName, outPutFileName);
                pss.StartInfo.UseShellExecute = false;
                pss.StartInfo.CreateNoWindow = true;
                pss.Start();
                while (!pss.HasExited)
                {
                    continue;
                }
                msg = "";
                bl = true;
            }
            catch(Exception ex)
            {
                msg=ex.Message.ToString();
            }
            return bl;
        }

望高手帮忙解决