MSCOMCTL.OCXx是公用ActiveX插件控制模块。一些增强型插件外挂无法显示窗口，很可能是因为系统中缺少 mscomctl.ocx。如果出现了Component 'mscomctl.ocx 'or one of its dependencies not correctly registered:a file is missing or invalid问题，可下载MSCOMCTL.OCX来