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minimum os win7  





binary.png ultravnc 1360 X64 setup

UltraVNC distribution for 64-bit operating systems.
Auto Operating system selection

Virtual displays require server win 10
ddengine capture win 10
mirror driver <= win7

GNU/GPL link_extern.gif 2021-12-15 English Windows 5.06 MB 172,535 Download

binary.png ultravnc 1360 X86 setup

UltraVNC distribution for 32-bit operating systems.
virtual displays win10
Mirror driver <= win7


GNU/GPL link_extern.gif 2021-12-15 English Windows 4.5 MB 17,641 Download

Changed bins

zip.png ultravnc bin zip

Changed bins for  32/64

GNU/GPL link_extern.gif 2021-12-15 Windows 4.98 MB 9,538 Download


Release · ultravnc/UltraVNC (github.com)



* Ultr@VNC - Latest modifications - History

Security update
-Impact: viewer without dsmplugin who makes a connection to a fake vnc server
-The warning popup didn’t had a cancel when server hostname was to long.
-prevent memory overrun by encoders by doing some bound checking.
-use lzo safe function calls 

Optional notification message is also added to the accept/refuse query dialog

Remote screen blanking back working on windows 10
Optional notification popup on server pc. Can, be set on viewer pc.
Optional red band around the screen while conncted
TigerVNC Cursor fix, Cursor SHape
Add menu for snapshot
Viewonly has priority
Accept/Refuse prompt while Windows is locked
Add custom ini to serviceThere are two limitations though:1. No spaces in ini file path (escaping does not work)2. service_commandline option with -inifile argument must be present in ini file himself

Fix Hibernation stopping the service

Reverse connection use default authentication

rdpmode fix
size/position/dpi update
security fixes
AdjustWindowRectExForDpi fix
scaling changes
Prevent service to restart vnc desktop  part when SHutdown has been initiated.
Better result for scaling  200% or 300%
delete ( remove MRU + delete optione files + reset to default)
High dpi_aware

vnc4server patch update
Fix connection issue with vnc4server in 32 bit color depth.
Fix broken screen color with vnc4server in 32 bit color depth.
Fix broken mouse cursor color in 16 bit color depth.
Fix corruption along mouse cursor trajectory
Fix broken background color in 24 bit color depth (vncviewer).
Fix TightEncode
Fix TigerVNC
rdpmode fix
cleanup old code
Zstd 1.5.0
Possible crash fix ( minidump analyse)
winpe fix
zlib fix
multimouse option
multiple mouse pointers
On remote resize, left/top of viewer isn't move
fix  scale to windows size
last mouse click viewer has controle
On remote resize, left/top of viewer isn't moved
Use singleton for osversion
Disbale touchscreen input when mouse is disabled
Add noacceleration build options
Scrollbar fix
ddengine/scrollbar/ initial cursor ??
Scrollbar fix
viewer maximize/minimize/restore
Fullscreen fixes
span multiple monitors
Allow minimize for non spanned monitors
createpasswd ( secure mode)

TigerVNC compat fixes
Modify Extended clipboard for TigerVNC
Fix tigerVNC extDesktop compat issue's



*Updated viewer ui interface
*bug fixes
*extended desktop: show only extended, allow multiple extended displays
*performance update for ddengine with multi monitors
*moved driver install to installer



*Updated viewer ui interface
*bug fixes
*extended desktop , better multi monitor support

Zrle +Filetransfer crash fix

*Chat crash fix
*memory leak fixed
*security fix
*Zstd added [v] use zstd instead of zlib

*zlib update
-High dpi cursor offset fix
-reported 123 bugs fixed

- incoming data from server to viewer and invers is extra checked for code injection by fake viewer or servers. Were possible, functions are replaced by there security enhanced counterpart.
-made international keyboard path option
-jpg encoder use master frames
-prevent screen lock while connected
-Viewer changes
*settings are now server based
*tab option screen via expand button


-cleanup compiler warnings
-redraw full screen after fullscreen
-mouse position correction multi monitor
-uvnc_settings.exe ( check mirror driver)
-delete race condition invers connection
-using reconnect thread, better repeater behaviour
-ddengine fix when screen resolution change online
-SDK win10 fix for VS 2017
-security fixes: Thanks to Pavel Cheremushkin
-ddengine update flashing cursor + performance
-added performance mode, activated when max cpu is set to 100

-update jpeglib to 2.0.0
-update zlib 1.2.11
-Accept box and UAC fix
-Header changes for gcc
-save query accept settings
-Desktop size incorrect after service logon screen with multi monitors
-secondary from ini not handled correctly after login screen
-Fixed File Transfer of mapped network drives. CreateFile called in different thread than ImpersonateLoggedOnUser

-hang by secondary=1 in ini
-Window sizing by auto scaling correct
-Window update after fullscreen
-ddengine systay hint, shows when when ddengine isn't used

-fixed driver activation ( bug
-mirror driver “check driver” button fixed
-OS detection always detected win8 on win8>=, added new code to proper detect win10
-FileTtransfer and repeater bug fix ( transfer broke on to slow connections)
-faster initialization
**multi monitor
-change ddengine for multimonitor on single video card
-Dual screen / triple screen with mirror/ddengine/blit
-mouse ccorinates
++added Delay query window after restart ( to avoid multiple querywinodw accepts), server option
++added server option to enable/disable uvnckeyboardhelper.exe in win8
-win10 fixes
-Single exe for wp-win10
-better multi monitor support
-ultra2 encoder optimized
-ddengine for win8>=
-disconnect fixes Jan 2018
-XP fixes
-repeater security fix
-File Transfer fixes
*temp path
*XP libs
*Seperated thread for FT Sept 2017
-bad connection caused by clipboard transfer during connection
-reconnect viewer failed

changes June 2017
-Faster FT
-Fixed FT from winvnc to vncviewer if winvnc is running as service
-Better windows 10 support
-jpeg lib update

** V1.2.1.1 April 2016
Vnchooks: make sure the correct versions are attached, some older crashed

-black screen on connection/ grey screen on connection and deadlock
-on disconnect server icon stayed yellow, blocking new connections
-black viewer with icons without file transfer.
-fixed mem leaks/resource leak

-Fix overrun crash
-Timeout reconnect fix
-Closing no reconnect fix
-Auto refresh after idle
Update jpeg lib

** V1.2.1.0 January 2016
Server: added rdp session select
Server: added alternate shell  when you use another shell the explorer.exe it doesn’t work correct


Viewer: added remember last location ( host based)

Artifacts on win8>
Faster reconnect on session switch
Repeater:reconnect, some port scanners could kick connections, stability

** V1.2.0.9 November 2015

*added XZ encoder (small bandwidth)
*crash fix
*auto mode: better initial settings to avoid coder switch on start
*fix 10 second delay win8 with keyboardhelper
*w8hook embedded
*option Gii encoder adde
*memory leaks
*added tight encoder patch from Turbovnc project
*reconnect timeout in invers mode was increasing on each try, max set to 3 minutes*crashes detected by crashrpt fixed

** V1.2.0.6 June 2015

*fix timeout multiple viewers
*scale server window, also when directx is not available
*fix multiple initial screen sends
*fix win8 and w8hook loop/hung high cpu
*added dpi aware for viewer

** V1.2.0.5 Dec 2014

*add viewer idle timer

*add server id to password box

*server deadlock fixed ( existed already for 2 years)

*server tray install/uninstall/start stop service

*minimize viewer and high cpu

*save plugin options corrected

*update uvnc_settings.exe ( added new settings, help pages, service buttons)

*update repeater (could be locked by port scans)

** V1.2.0.4 Nov 2014

-Save config plugin fix
-clipboard deadlock
-allow filetransfer when file is open
-sdtime removed ( performance)
-alt-grf win8 fix


** V1.2.0.3 Aug 2014

impact: all pre versions
exploit: localuser (guest) can gain local admin access on win8
** V1.2.0.2
*viewer portable
*you can set a single port java/rfb
*server deadlock fixes for slower connections
*ignore cursor when not in view window ( crashed java viewer)
*fast keyboard input could cause 100% cpu usahe on win8, fixed

** V1.2.0.1 Aug 2014

*service, fix error 1314, server sometimes failed to start desktop part and closed winvnc.
*security: increase timeout after each wrong password to make brute force hacking harder
*color correction 16bit and mirror driver*memory leak with mirror driver fixed in previous fix J
*save setting permission fix
*added support for new repeater with keepalive
*tooltip buffer overrun fix, cause server to fail when sting in systray was to long
( multiple ethernet card. Long hostnames etc…)

**V1.1.9.6 Dec 2013

*auto alpha blending based on OS*zrle deadlock fix
*tight encoding fixed
*show screenbuildup on first run
*server fix bug that crashed iexplorer 8

**V1.1.9.4 Okt 2013

*viewer mod for vmware ( wrong colors)
*update lijpeg-turbo to 1.3.0

**V1.1.9.3 Aug 2013
-Missing screen  refresh  ( when driver selected but not used)
-Factory reset ( when temp was not writable) 

**V1.1.9.2 Aug 2013
-Mirror driver and begative screen coordinates (left secondary desktop)

**V1.1.9.0 May 2013
-fixed change ip detection, sometimes server was disconnected after a few seconds by a false positive
-new installer xp64 wasn’t supported

**V1.1.8.9 April 2013
-Viewer timeout option grayscreen fix
-server leaks fixed

**V1.1.8.8 March 2013
-server crash
-server grayscreen on startup loop fixed

**V1.1.8.7 March 2013
-filetransfer bug fix (x64)

**V1.1.8.6 March 2013
-autoreconnect and auth fail fix
-viewer with option window open fails to close
-viewer messagebox sometimes hidden behind window

**V1.1.8.5 March 2013
deadlock softcursor fixed (viewer)
**V1.1.8.4 March 2013
-u2 encode on 16 color display crash
-fullscreen bar center
-recoonect set by default

**V1.1.8.3 March 2013

-Fix server /NULL crash
-Fix radio button u2 viewer

**V1.1.8.2 March 2013
-fix lock after gray screen

**v1.1.8.2 (March 2013)
-disconnect after gray screen
**v1.1.8 (Nov 2012)
-addad support windows 8
( new capture engine)
-several bug fixes
-better multi monitor support
-new vncpasswd + encryption.
Instead of using the password as part of the encryption, we now check the password insite the encryption by the server. This allow the server to balcklist servers
after x fault password.

WARNING: If using encryption plugin + vncpassword you better upgrade. No protection against Brute force password hacking.

**v1. (Feb 2012)
-removed beeps
-Capture alpha-Blending default value.
-Viewer crash fixed
-Grayscale fixed
-msi installers

*crash chat x64
*AuthRequired=0, passwd=NULL: Warning message block service
*About x64 say win32
*viewer 1082 and server 1096 with localcursor ( no connect, 100% cpu)
*serversite scaling and multiple viewers, framebuffer size get overwritten
(Scale is now lock when multiple viewers are connected to avoid a
framebuffer change, first connected viewer set scale. Site effect is that
the viewer report the unused, incorrect scale, but at least it doesn't crash anymore)
*-connect ip, passed to winvnc running as service is not remembered for
stop the autoreconnect function of the server.
*server mouse moves jump on viewer when screen is idle.
*old plugin zrle crash

*plugin (SecureVNCPlugin) used by viewer
server without plugin
give incorrect viewer message. And doesn't ask to reject the connection.
*monitor value is saved, but vncviewer read it as bool (true/false)
Only 0/1 are correct imported
*old plugins fail when zrle encoding is used
*old plugins give incorrect info in statusbox
*-autoreconnect timeout, -reconnectcounter number
(available from gui and commandline)
-autoreconnect timeout was incorrect, updated
*old plugin detection
*Messagebox was sometimes displayed on invisable desktop
*auth dll error messages for missing dll's incorrect
*mslogon and no groups, didn't checked admin account for access
*lock /logout screen on exit viewer option blocked shutdown server.

*mslogon fixed

added special build: only one port for javaviewer (rfb port is used for java download and rfb data)




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
GNU General Public License for more details.