UltraVNC既是一个客户端也是一个服务器，可以用TCP/IP连接来控制另一台电脑。它可以在W9x/NT/2K/XP在使用，拥有包括自动设置，友好用户界面，全局热键，内部文件传输等功能。除此之外，它还是免费的，速度也非常不错。UltraVNC可能是我见过的最快的远程控制软件。你可以在旅行的时候访问你家里的计算机，处理发现的故障或者一般的网络连接。

Ultr@VNC is a client/server software that allows you to remotely control a computer over any TCP/IP connection as if you were in front of it. It is Free and distributed under the terms of the GNU General Public License
Supported Operating Systems: Win9x/Me/NT4/Win2000/XP.

Main Features:
- Auto Configuration and Quick Options for easy connections.
- Viewer Toolbar and Hot keys for a quick access to the main functions and greatly improved ergonomy.
- Embedded File Transfer with intuitive Graphical User Interface.
- High Speed. A cutting-edge Video Hook Driver (kernel mode) for Win2000 and XP dramatically improves performances and reduces CPU activity over LAN connections.
- MS Logon/NT Security/Active Directory support.
- Bandwidth Saving Strategies that provide optimal responsiveness even over slow connections.
- Optionnal "always-on-top" Viewer Status Window dynamically displaying connection informations.
- Command Line Configuaration.
-..and a lot more.