UltraVNC runs under Windows operating systems (95, 98, Me, NT4, 2000, XP, 2003...). Its embedded Java Viewer allows you to connect (and make File transfers) from a simple Web Browser on any Operating system supporting Java (Linux, Mac OS...) to an UltraVNC server.
You can connect directly from your Ubuntu desktop with tsclient (Applications --> Internet --> Terminal Server Client).
Previously, you have to ensure you have the VNC Client installed as well:
sudo apt-get install vnc-viewer
Then you can select VNC as connection protocol to connect to your Windows box from Linux.
Tip: Use the special F8 key
Most of the VNC clients have a special mapping for the F8 key. A menu will open and you can
- send the F8 key to the remote desktop
- send Ctlr-Alt-Del to the remote desktop
- change the preferences of the VNC client
- and other stuff depending on the client