Minimum OS: Windows 7

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UltraVNC 1.6.4.0

1.6.4.0




INSTALLERS

Downloads:
binaryultravnc 1640 X64 setup 1.6.4.0 HOT

UltraVNC 1.6.4.0  distribution for 64-bit operating systems.

UltraVNC_1640_x64_Setup.exe:
Verified: Signed
Signing date: 22:29 22/06/2025
Publisher: uvnc bvba
Company: uvnc bvba
Description: UltraVNC installer
Product: UltraVNC
Prod version: 1.6.4.0
File version: 1.6.4.0
MD5: 7BB9DF82283BF16F6F125A1267408F81
SHA1: C6879FF140B078355D056D21DDADDA51288BEC1D
PESHA1: 45FC0BF4EA10A0DB8A756D3DE5DC22431362632D
PE256: 2EE62E51F14D2A7BA15E4884717D11499917B53BBA5CC9E7753170294682D0C1
SHA256: 434853E116EEB132CFDF47FDF6BA489D30C67A38147AFF6B9BD0EC2F4D0F1919
IMP: E569E6F445D32BA23766AD67D1E3787F

License GNU/GPL link_extern
File Size 5.66 MB
Download 495,334
Download

binaryultravnc 1640 X86 setup 1.6.4.0 HOT

UltraVNC 1.6.4.0 distribution for 32-bit operating systems

UltraVNC_1640_x86_Setup.exe:
Verified: Signed
Signing date: 22:29 22/06/2025
Publisher: uvnc bvba
Company: uvnc bvba
Description: UltraVNC installer
Product: UltraVNC
Prod version: 1.6.4.0
File version: 1.6.4.0
MD5: 2F73EC0C4DFDE56022E492F2BFDD99C1
SHA1: 3C19780737FAD9412B66F774E1A497D6EBE4D1A5
PESHA1: 4BDF01C1C300428B84CDDA4A9F4FE903600EAC66
PE256: BF6F81A2BB870A99C47319A8DAE87FE4EE756FD048E9801F0DB17967A88827CC
SHA256: 92378B147B1467788178C1E09AA177286ED6220F2BB9C55872E3D154EDBC3D04
IMP: E569E6F445D32BA23766AD67D1E3787F

License GNU/GPL link_extern
File Size 4.92 MB
Download 33,838
Download

MSI

binaryultravnc 1640 msi X86 1.6.4.0 HOT

UltraVNC 1.6.4.0 distribution for 32-bit Windows 

UltraVNC_1640_x86_Setup.msi:
Verified: Signed
Signing date: 18:13 26/06/2025
Publisher: uvnc bvba
MD5: D9C00219BDE5D6DD51F0E887BB292100
SHA1: DD22D56CF774F3EA7056CAF0A06C0211BFA6AACF
PESHA1: DD22D56CF774F3EA7056CAF0A06C0211BFA6AACF
PE256: EF1E2CCFA047DA5C6E1CE54EB009CA8B4892B883FFE9C031DF1339E68FFA93E3
SHA256: EF1E2CCFA047DA5C6E1CE54EB009CA8B4892B883FFE9C031DF1339E68FFA93E3

License GNU/GPL link_extern
File Size 5.47 MB
Download 11,674
Download

binary ultravnc 1640 msi X64 1.6.4.0 HOT

UltraVNC 1.6.4.0 distribution for 64-bit operating systems.

UltraVNC_1640_x64_Setup.msi:
Verified: Signed
Signing date: 18:13 26/06/2025
Publisher: uvnc bvba
MD5: 49988CB48F9C43742E005765A468BE64
SHA1: E7B6DB7F2AEC17103071C47F7A88E606AA0A85B7
PESHA1: E7B6DB7F2AEC17103071C47F7A88E606AA0A85B7
PE256: 3A052B8B73DFC0B740CBEAC95E550BBA5C4E2CD3083693F4B40CB6A4C8D1974B
SHA256: 3A052B8B73DFC0B740CBEAC95E550BBA5C4E2CD3083693F4B40CB6A4C8D1974B

License GNU/GPL link_extern
File Size 6208k
Download 24,352
Download

Zipped x86/x64 binaries

zipultravnc 1.6.4.0 zip 1.6.4.0 HOT

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

License GNU/GPL link_extern
File Size 9.89 MB
Download 23,514
Download

SC

binary ultravnc SC 1640 1.6.4.0 HOT

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

License GNU/GPL link_extern
File Size 1830k
Download 3,797
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.

https://www.gnu.org/licenses