Although [[X WindowsWindow]] client libraries and applications are provided, SFU does not contain a native [[X server]]. A number of third party X servers can be used including [[WRQ]]'s [[Reflection X]] or [[Hummingbird]]'s [[Exceed]]. In addition, StarNet provides a free [http://www.starnet.com/xwin32LX/get_xwin32LX.htm Win32 X Server] designed specifically for local X applications on Windows. Several [[Free software|free software]] X11 Server implementations are available from [[X/Cygwin]], [http://freedesktop.org/wiki/Xming Xming] and [http://www.pexus.com/ X-Deep/32].