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Using TurboVNC with the UltraVNC Server

The Windows TurboVNC Server (WinVNC) was discontinued with the release of TurboVNC 1.1 in 2012. Our Windows server code was based on TightVNC 1.3.x, so it had a lot of bugs and didn't work with Windows releases later than XP, and because WinVNC was not of strategic importance to The VirtualGL Project (we support Windows 3D applications by running VirtualBox in VirtualGL using the Un*x TurboVNC Server), it was not actively maintained.

In late 2015, a patch was contributed to UltraVNC that accelerates their Tight encoder using the TurboVNC encoding algorithms. Since UltraVNC already uses libjpeg-turbo to accelerate JPEG encoding, the addition of the TurboVNC encoding algorithms brought the performance of the UltraVNC Server up to the same levels as the Un*x TurboVNC Server.

For those desiring a high-performance WinVNC solution, it is recommended that you use the UltraVNC Server, version or later, with the TurboVNC Viewer.

Installing and Configuring the UltraVNC Server

  1. Download and install UltraVNC or later
  2. Install the UltraVNC Mirror Driver
    • Download the driver and unzip it
    • Open an administrator command prompt (right-click on Command Prompt and select "Run as administrator")
    • cd driver/vista64
    • install.bat (the script does not print anything to confirm that the driver has been installed)
    • Reboot
  3. Launch the UltraVNC Server
  4. Configure UltraVNC for maximum performance
    • Right-click on the UltraVNC icon at the right of the taskbar, and select "Properties"
    • "Poll Full Screen" and "System HoolDll" should be checked (this is the default)
    • Check the "Mirror Driver" check box, then click the "Check the mirror driver" button. It should say "Driver found. Driver version OK. Driver not activated ..." (It will be activated as soon as a viewer connects)
    • Un-check "Low Accuracy (Turbo Speed)"
    • Set "Max Cpu" to 90
    • Click "OK"
  5. Set a VNC password
    • Right-click on the UltraVNC icon at the right of the taskbar, and select "Admin Properties"
    • Enter a new VNC password in the "VNC Password" box
    • Click "OK"
  6. Install the TurboVNC Viewer on your client machine and use it to connect to the Windows server

Creative Commons LicenseAll content on this web site is licensed under the Creative Commons Attribution 2.5 License. Any works containing material derived from this web site must cite The VirtualGL Project as the source of the material and list the current URL for the TurboVNC web site.

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Page last modified on August 18, 2017, at 03:02 PM