1.6.4.0




INSTALLERS

 
Files:
binary.png ultravnc 1640 X64 setup

UltraVNC 1.6.4.0  distribution for 64-bit operating systems.

UltraVNC_1640_x64_Setup.msi:
Verified: Unsigned
File date: 22:30 22/06/2025
Publisher: n/a
Company: n/a
Description: n/a
Product: n/a
Prod version: n/a
File version: n/a
MachineType: n/a
MD5: 2A47CA40DBDF960E1F80C117E4826ED8
SHA1: 17CFFA96764127D39B251BD04CE964B13DCAF1A5
PESHA1: 17CFFA96764127D39B251BD04CE964B13DCAF1A5
PE256: 410396AF204FF43A71DA2BB5B888501155414CC594D2DD73EB64D030118889B0
SHA256: 410396AF204FF43A71DA2BB5B888501155414CC594D2DD73EB64D030118889B0

GNU/GPL link_extern.gif 2025-06-22 English Windows 196 B 1,337 Download

 
binary.png ultravnc 1640 X86 setup

UltraVNC 1.6.4.0 distribution for 32-bit operating systems

UltraVNC_1640_x86_Setup.msi:
Verified: Unsigned
File date: 22:29 22/06/2025
Publisher: n/a
Company: n/a
Description: n/a
Product: n/a
Prod version: n/a
File version: n/a
MachineType: n/a
MD5: 1282F87CB42DAACCD8446E761DD8C5A9
SHA1: 7C2127170DB1D5E3602C3A59BEA461C36AE76015
PESHA1: 7C2127170DB1D5E3602C3A59BEA461C36AE76015
PE256: 56AF95BD72B64F17251103355E2BEAC8853181781AB6D85AB4DBACFDF3760C7C
SHA256: 56AF95BD72B64F17251103355E2BEAC8853181781AB6D85AB4DBACFDF3760C7C

GNU/GPL link_extern.gif 2025-06-22 English Windows 196 B 163 Download

msi

 
binary.png ultravnc 1640 msi X86

UltraVNC 1.6.4.0 distribution for 32-bit Windows 

UltraVNC_1640_x86_Setup.msi:
Verified: Unsigned
File date: 22:29 22/06/2025

MD5: 1282F87CB42DAACCD8446E761DD8C5A9
SHA1: 7C2127170DB1D5E3602C3A59BEA461C36AE76015
PESHA1: 7C2127170DB1D5E3602C3A59BEA461C36AE76015
PE256: 56AF95BD72B64F17251103355E2BEAC8853181781AB6D85AB4DBACFDF3760C7C
SHA256: 56AF95BD72B64F17251103355E2BEAC8853181781AB6D85AB4DBACFDF3760C7C

 

GNU/GPL link_extern.gif 2025-06-22 English Windows 5.35 MB 53 Download

 
binary.png ultravnc 1640 msi X64

UltraVNC 1.6.4.0 distribution for 64-bit operating systems.

UltraVNC_1640_x64_Setup.msi:
Verified: Unsigned
File date: 22:30 22/06/2025
MD5: 2A47CA40DBDF960E1F80C117E4826ED8
SHA1: 17CFFA96764127D39B251BD04CE964B13DCAF1A5
PESHA1: 17CFFA96764127D39B251BD04CE964B13DCAF1A5
PE256: 410396AF204FF43A71DA2BB5B888501155414CC594D2DD73EB64D030118889B0
SHA256: 410396AF204FF43A71DA2BB5B888501155414CC594D2DD73EB64D030118889B0

GNU/GPL link_extern.gif 2025-06-22 English Windows 196 B 75 Download
 

Zipped binary's 32/64

 
zip.png ultravnc 1.6.4.0 zip

Changed bins for 1.6.4.0  32/64


File date:      22:26 22/06/2025
MD5: 5293179E3FA265FEE1F986B37ADEA10D
SHA1: DA92399488CC089767C760A492627BFFD8986753
PESHA1: DA92399488CC089767C760A492627BFFD8986753
PE256: 910AB4DF4441C4F415C59007501E23EA2DB331AA5DFA6ECBD5E583F34362D975
SHA256: 910AB4DF4441C4F415C59007501E23EA2DB331AA5DFA6ECBD5E583F34362D975

GNU/GPL link_extern.gif 2025-06-22 Windows 196 B 184 Download

SC
 
binary.png ultravnc SC 1640

UltraVNC 1.6.4.0 distribution for 64-bit operating systems.

UltraVNC_SC_1640.zip:

MD5: 64AEA1320210D09B721AA83B582348C2
SHA1: 32B7262901FADA720FD52A3893353075E6502542
PESHA1: 32B7262901FADA720FD52A3893353075E6502542
PE256: 510897673E89A247567E224AC6B525EB0049D694983F67D395B249606C5E43EE
SHA256: 510897673E89A247567E224AC6B525EB0049D694983F67D395B249606C5E43EE

GNU/GPL link_extern.gif 2025-06-22 English Windows 196 B 47 Download

 

UltraVNC – Changelog


1.6.4.0 – June 2025

  • Update viewer layout
  • Viewer, SessionDialog wrong size after dpi change #278
  • Fix to small msg buffer size
  • Fix big border (ThomasLevering)
  • Update GNOME /QEMU display settings text + zlibbuffer was unneeded recrated
  • Fix vncviewer crash #58
  • FIX empty password detection, also for SC
  • Fix bug in undefer_input() that misplaced the input state. (#272)
  • Do not accept Anonymous TLS sub-types during VeNCrypt authentication (#274)
    But allow fallback to standard RFB types (e.g. rfbVncAuth)

1.6.1.0 – May 2025

  • Fixed Chat Japanese chars
  •  Fixed saving listenport
  •  Fixed saving custom messages accept/reject
  • Fixed save settings should not reload defaults

1.6.0.0 – April 2025

  • Updated dev version to release.


1.5.0.18-dev – April 2025

  • Use single DLL instead of V2 version.


1.5.0.17-dev – April 2025

  • International keyboard fix.


1.5.0.16-dev – April 2025

  • Viewer defaults were not loading.

  • Possible keyboard fix (to verify) — supports characters like +ěščřžýáíé=´.

  • Renamed authSSPV2 loggingV2.dll to fix Event Viewer messages on x64.

  • Echoserver fix.

  • Fix for broken sc_20 build.

Keyboard Notes:

  • The "international keyboard" option must be enabled on the server.

  • Only tested using a virtual Czech keyboard.

Bug Detail:

  • Viewer defaults missing caused issues like incorrect INI viewonly mode and wrong encoding settings.


1.5.0.15-dev – March 2025

  • File Transfer: Fixed buffer overflow and memory leak (#254).

  • Added service to settings.

  • Log file movement fix.


1.5.0.14-dev – March 2025

  • Slider fix.

  • Fixed DSMPlugin and MS-Logon settings when running as standalone.

  • Resolved bug where own messages weren’t logged due to logfile move.


1.5.0.13-dev – March 2025

  • Moved log file to the ultravnc.ini folder.


1.5.0.12-dev – March 2025

  • File Transfer window size fix.

  • Fix for crash on Microsoft Windows 7.

  • Installer: Added "Run as admin" to settings shortcut.

  • Installer: .ini file now copied to ProgramData before service starts.


1.5.0.10-dev – March 2025

  • DSMPlugin configuration fix.

  • Fixed "Apply Save Settings" functionality.

  • Clearing admin password also clears VNC password.

  • ISOtime added in About window + smaller max size.


1.5.0.9-dev – March 2025

  • Removed installer popups.

  • Fixed issue where some settings weren’t saved correctly.


1.5.0.8-dev – March 2025

  • Save settings fix.

  • Typo correction.

  • Added Bluesky integration.


1.5.0.7-dev – March 2025

  • Command line can now overwrite default values.

  • Settings dialog can run standalone.

  • Viewer: Focus set to host input field.

  • General bug fixes.


1.5.0.5-dev – February 2025

  • Fallback to old folder if ultravnc.ini is missing.

  • Command line options take priority in Viewer.

  • Encryption fix for viewonly (VNC password).

  • UI/UX: Settings dialog enable/disable cosmetic fix.

  • Plugin architecture check (32/64-bit) before use.

  • Chunked messages and default client certs allowed in TLS (#250).

  • Rules fix.


1.5.0.4-dev – February 2024

  • UI update.

  • Moved ini file to ProgramData.

  • Bug fixes (see Git).

  • Added admin password functionality.


1.5.0.3-dev

  • UI corrections.


1.5.0.2-dev

  • Merged IPv4 & IPv6 into a single EXE with switchable property.

  • Fixed RealVNC UDP port usage.

  • UI improvements: layout and icons.


1.5.0.1-dev

  • Reverted fonts in File Transfer.

  • Fullscreen: Added Chat and File Transfer to topbar.


1.5.0.0-dev

  • DirectX reconnect fix.

  • Added extra links.

  • Text/version info fixes.

  • Switched to vcpkg for easier library maintenance.

  • Fixed stack corruption (#185).


1.4.4.0-dev

  • Code cleanup.

  • UI spellcheck and standardization.

  • TLS: Added CertVerifyCertificateChainPolicy API (#144).

  • Switched to Arial font.

  • TLS-encrypted transport via VeNCrypt authentication (#142).

  • WIP: RSA-AES auth & encryption (#139).

  • Fixed typo: "Repetear" → "Repeater" (#138).

  • Windows Recovery Environment (WinRE 10) fix.

  • Snapshot naming now sortable by date.

  • Unified omnithread usage for Server and Viewer.

  • Reinit D3D device on invalid pre-update (#130).

  • SC: UAC restoration with try/catch.

  • Scrollbar added to properties.

  • Fixed group default settings load order.

  • SC UAC reset fix.

  • Able to connect to Debian v12 "bookworm" via WayVNC (#133).

  

License

GNU GENERAL PUBLIC LICENSE (GPL)

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.

http://www.gnu.org/licenses