同时启动了多个word的exe，word退出的时候，会报警告“此文件正由另一个应用程序或用户使用” normal.dot

Word_doc.SaveAs(ref  savePath, ref   oMissing, ref   oMissing, ref   oMissing,
ref   oMissing, ref   oMissing, ref   oMissing, ref   oMissing,
ref   oMissing, ref   oMissing, ref   oMissing);

//避免弹出normal.dot被使用的对话框
Word_App.NormalTemplate.Saved = true;

//关闭Word
Word_doc.Close(ref oMissing, ref oMissing, ref oMissing);
Word_App.Quit(ref oMissing, ref oMissing, ref oMissing);