The ggivnc application is a VNC client that uses
GGI for input and output. It supports many
encodings (ZRLE, Tight, Hextile, Zlib, ZlibHex, RRE,
CopyRect, LastRect, DesktopName, DesktopSize, WMVi, CoRRE, gii, and the required Raw encoding).
Information regarding Project Releases and Project Resources. Note that the information here is a quote from Freecode.com page, and the downloads themselves may not be hosted on OSDN.