|This article needs additional citations for verification. (August 2008)|
|Initial release||v1.0 in 2001 |
|Stable release||2.7.3 / May 29, 2013|
|Written in||C, C++, Java|
|Operating system||Microsoft Windows, Linux|
|License||GNU General Public License GPL v2|
TightVNC is a cross-platform free and open-source remote desktop software application that uses and extends VNC's RFB protocol to control another computer's screen remotely. It was created by Constantin Kaplinsky. His extensions provide for 'tight encoding', which improves performance over low bandwidth connections.
TightVNC uses so-called "tight encoding" of areas, which is effectively a combination of the JPEG and zlib compression mechanisms. It is possible to watch videos and play DirectX games through TightVNC over a broadband connection, albeit at a low frame rate. TightVNC includes many other common features of VNC derivatives, such as file transfer capability.
TightVNC is cross-compatible with other client and server implementations of VNC; however, tight encoding is not supported by most other implementations, so it is necessary to use TightVNC at both ends to gain the full advantage of its enhancements.
Among notable enhancements are file transfers, support for Windows DFMirage mirror driver to detect screen updates (saves CPU time and increases the performance of TightVNC), ability to zoom the picture and automatic SSH tunneling on Unix.
Since the 2.0 beta, TightVNC supports auto scaling, which resizes the viewer window to the remote users desktop size, regardless of the resolution of the host computer.
TightVNC Portable Edition