怎样在windows上实时显示unix/linux窗口？

Is there any software which will let me run an X Windows program on one machine(Unix or Linux system) and display on a number of other machines(windows system) simultaneously?
  怎样可以使unix/linux的X windows窗口通过网络实时显示在windows系统上，（有点象windows中的PcAnywhere)不一定要求windows系统可以控制他。:confused: :confused: :confused: 　　　　　　

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