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After more 2 000 000 (two million) views on forum for 1.5.0.x development versions... and 1.6.1.0, 1.6.3.0-dev versions
A new stable version, UltraVNC 1.6.4.0 and UltraVNC SC 1.6.4.0 have been released: https://forum.uvnc.com/viewtopic.php?t=38095
Feedback is always welcome

2026-04-01: After 1.7.x, 1.8.x release builds need tests and feedback: https://forum.uvnc.com/viewtopic.php?t=38158

2026-03-11: CVE-2026-3787 and CVE-2026-4962 - Clarification: https://forum.uvnc.com/viewtopic.php?t=38155

2025-12-02: We need help: English Wikipedia UltraVNC page has been requested to deletion: https://forum.uvnc.com/viewtopic.php?t=38127
Any help is welcome to improve the UltraVNC page and/or to comment on the Wikipedia Talk page

2025-05-06: Forum password change request: https://forum.uvnc.com/viewtopic.php?t=38078

2023-09-21: Important: Please update to latest version before to create a reply, a topic or an issue: https://forum.uvnc.com/viewtopic.php?t=37864

Development: UltraVNC development is always here... Any help is welcome
Feedback is welcome

Help is very needed for:
Windows ARM/ARM64 support: https://forum.uvnc.com/viewtopic.php?t=38163 / https://github.com/ultravnc/UltraVNC/issues/346
macOS support: https://forum.uvnc.com/viewtopic.php?t=38164 / https://github.com/ultravnc/UltraVNC/issues/347
Linux support: https://forum.uvnc.com/viewtopic.php?t=38165 / https://github.com/ultravnc/UltraVNC/issues/348
*BSD support: https://forum.uvnc.com/viewtopic.php?t=38166 / https://github.com/ultravnc/UltraVNC/issues/349
*Solaris support: https://forum.uvnc.com/viewtopic.php?t=38167 / https://github.com/ultravnc/UltraVNC/issues/350

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1667 topics

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Announcements

Replies

Views

Last post

Celebrating the 23th anniversary of the UltraVNC (26th anniversary since the laying of the foundation stone)

Last post by Ludovic « 2025-12-05 11:12
Posted in Announcements

by Ludovic » 2025-12-05 11:12 » in Announcements

0 Replies

703913 Views

Last post by Ludovic
2025-12-05 11:12
Poll: Renaming UltraVNC files and service to be more clear

Last post by Ludovic « 2025-12-03 20:20
Posted in Announcements

by Ludovic » 2025-12-03 20:20 » in Announcements

0 Replies

435774 Views

Last post by Ludovic
2025-12-03 20:20
UltraVNC 1.6.4.0 and UltraVNC SC 1.6.4.0 Released

Last post by Ludovic « 2025-06-25 16:38
Posted in Announcements

by Ludovic » 2025-06-25 16:38 » in Announcements

0 Replies

1476211 Views

Last post by Ludovic
2025-06-25 16:38
UltraVNC 1.6.4.0 and UltraVNC SC 1.6.4.0 - Feedback

Last post by Ludovic « 2026-04-08 10:25
Posted in 1.6.x
Replies: 26
by RudiDeVos » 2025-06-22 21:06 » in 1.6.x

26 Replies

3054951 Views

Last post by Ludovic
2026-04-08 10:25
Important: Please update to latest version before to create a reply, a topic or an issue

Last post by Ludovic « 2023-09-21 10:06
Posted in Announcements

by Ludovic » 2023-09-21 10:06 » in Announcements

0 Replies

1197791 Views

Last post by Ludovic
2023-09-21 10:06

Topics

Replies

Views

Last post

Script to uninstall UltraVNC 1.0.6.4

Last post by mis_support « 2010-09-28 15:18

by mis_support » 2010-09-28 15:18

0 Replies

21856 Views

Last post by mis_support
2010-09-28 15:18
uvnc server shuts down after some time

Last post by freqfreq « 2010-09-27 22:45

by freqfreq » 2010-09-27 22:45

0 Replies

5775 Views

Last post by freqfreq
2010-09-27 22:45
Blank screen after WOL

Last post by codyw725 « 2010-09-27 18:10

by codyw725 » 2010-09-27 18:10

0 Replies

6600 Views

Last post by codyw725
2010-09-27 18:10
UVNC goes bad, remote reboot won't clear, switchoff needed

Last post by pol098 « 2010-09-27 17:01
Replies: 2
by pol098 » 2010-08-22 13:26

2 Replies

11323 Views

Last post by pol098
2010-09-27 17:01
Install error - setupdrv.exe

Last post by spacewalker « 2010-09-23 15:20

by spacewalker » 2010-09-23 15:20

0 Replies

6593 Views

Last post by spacewalker
2010-09-23 15:20
Viewer 1.0.8.2 -> SaveConnectioninfo does not save password

Last post by YY « 2010-09-22 00:18
Replies: 4
by plouf » 2010-09-19 10:29

4 Replies

14186 Views

Last post by YY
2010-09-22 00:18
Any way to always load "Full Dektop" view?

Last post by kosmokramer « 2010-09-22 00:13
Replies: 7
by kosmokramer » 2010-09-09 22:44

7 Replies

22261 Views

Last post by kosmokramer
2010-09-22 00:13
Mirror Driver Video Problem Nvidia XP

Last post by gyurman « 2010-09-20 19:36
Replies: 4
by gyurman » 2010-07-10 19:49

4 Replies

15634 Views

Last post by gyurman
2010-09-20 19:36
Win98

Last post by arnie « 2010-09-18 13:37

by arnie » 2010-09-18 13:37

0 Replies

6409 Views

Last post by arnie
2010-09-18 13:37
screen flashes when connecting or exiting to a vista machine

Last post by cc65cc « 2010-09-18 07:52

by cc65cc » 2010-09-18 07:52

0 Replies

7293 Views

Last post by cc65cc
2010-09-18 07:52
Remote Control instead of logon

Last post by RudiDeVos « 2010-09-17 14:33
Replies: 3
by jsulliv1a1957 » 2010-08-09 07:59

3 Replies

13306 Views

Last post by RudiDeVos
2010-09-17 14:33
Installed on Server 2008 with CAD. Have to be logged on....

Last post by Uswede « 2010-09-17 10:39

by Uswede » 2010-09-17 10:39

0 Replies

8528 Views

Last post by Uswede
2010-09-17 10:39
How to lock mouse and keyboard if viewer in listenmode

Last post by teacherwilli « 2010-09-16 16:22

by teacherwilli » 2010-09-16 16:22

0 Replies

6529 Views

Last post by teacherwilli
2010-09-16 16:22
Monitor blanking issue - custom BG image shows on BOTH!

Last post by kosmokramer « 2010-09-16 15:29
Replies: 3
by kosmokramer » 2010-09-10 23:52

3 Replies

11936 Views

Last post by kosmokramer
2010-09-16 15:29
Dual monitor problems - yep, they're still here

Last post by alphie « 2010-09-15 17:09
Replies: 1
by lexa2 » 2010-09-03 08:48

1 Replies

10034 Views

Last post by alphie
2010-09-15 17:09
Server Closed Connection: The Server running as Application

Last post by diamond « 2010-09-15 02:12
Replies: 7
by shdawson » 2010-04-03 16:03

7 Replies

65855 Views

Last post by diamond
2010-09-15 02:12
Getting UltraVNC to work under Windows 7

Last post by was98strat « 2010-09-15 01:14

by was98strat » 2010-09-15 01:14

0 Replies

8471 Views

Last post by was98strat
2010-09-15 01:14
UltraVNC 1.0.8.2 memory leak

Last post by yvesdm3000 « 2010-09-14 13:17

by yvesdm3000 » 2010-09-14 13:17

0 Replies

6314 Views

Last post by yvesdm3000
2010-09-14 13:17
Service stopping at reboot

Last post by davidgrudek « 2010-09-13 18:31
Replies: 7
by davidgrudek » 2010-08-27 16:53

7 Replies

20195 Views

Last post by davidgrudek
2010-09-13 18:31
This version is vulnerable to a dll exploit

Last post by RudiDeVos « 2010-09-13 15:12
Replies: 12
by g3k » 2010-08-30 13:55

12 Replies

59209 Views

Last post by RudiDeVos
2010-09-13 15:12
Copying of files locked on destination computer

Last post by trejder « 2010-09-13 12:28

by trejder » 2010-09-13 12:28

0 Replies

6260 Views

Last post by trejder
2010-09-13 12:28
Multiple Issues

Last post by mt_100 « 2010-09-10 15:38
Replies: 1
by mt_100 » 2010-09-10 14:14

1 Replies

8398 Views

Last post by mt_100
2010-09-10 15:38
The color scheme has been changed to Windows 7 Basic

Last post by kosmokramer « 2010-09-09 00:44
Replies: 7
by kosmokramer » 2010-09-08 15:16

7 Replies

27826 Views

Last post by kosmokramer
2010-09-09 00:44
Windows accept in background

Last post by jeremie.pa « 2010-09-08 07:27

by jeremie.pa » 2010-09-08 07:27

0 Replies

7470 Views

Last post by jeremie.pa
2010-09-08 07:27
CTRL - ALT - Del issue

Last post by JDaus « 2010-09-07 12:41
Replies: 1
by cpaphitis » 2010-09-06 20:05

1 Replies

8493 Views

Last post by JDaus
2010-09-07 12:41
Ultravnc Blanking and disable local inputs problem

Last post by UVnc2009 « 2010-09-06 07:36

by UVnc2009 » 2010-09-06 07:36

0 Replies

7875 Views

Last post by UVnc2009
2010-09-06 07:36
Windows 7 log in but no mouse or keyiboard

Last post by anykey « 2010-09-05 19:38
Replies: 1
by mbdman » 2010-09-02 19:59

1 Replies

8830 Views

Last post by anykey
2010-09-05 19:38
Hello Stone Age - Windows 95

Last post by YY « 2010-09-03 12:32
Replies: 1
by rah » 2010-09-01 14:05

1 Replies

7939 Views

Last post by YY
2010-09-03 12:32
1.0.8.2 Bins don't include vncviewer_tab.exe

Last post by RudiDeVos « 2010-09-03 12:02
Replies: 1
by jt65 » 2010-09-02 18:42

1 Replies

9747 Views

Last post by RudiDeVos
2010-09-03 12:02
Russian letters?

Last post by lexa2 « 2010-09-03 08:02
Replies: 3
by winXp » 2010-08-20 17:55

3 Replies

15823 Views

Last post by lexa2
2010-09-03 08:02
Vista PC cant control XP-Pro PC.

Last post by opelk180 « 2010-09-02 02:27

by opelk180 » 2010-09-02 02:27

0 Replies

6881 Views

Last post by opelk180
2010-09-02 02:27
Wake when put into sleep

Last post by philfromwaterbury « 2010-08-31 15:24
Replies: 4
by philfromwaterbury » 2010-08-23 12:42

4 Replies

17825 Views

Last post by philfromwaterbury
2010-08-31 15:24
'complete offline installation ultravnc' thread errors

Last post by jt65 « 2010-08-31 13:19
Replies: 2
by ncpnc » 2010-07-30 13:56

2 Replies

10252 Views

Last post by jt65
2010-08-31 13:19
Is it possible to do the following and how ?

Last post by B « 2010-08-27 14:29
Replies: 4
by wyvernshill » 2010-08-26 10:09

4 Replies

18996 Views

Last post by B
2010-08-27 14:29
shutdown sequence/reboot

Last post by rculpan « 2010-08-24 10:38
Replies: 15
by ruamdro » 2010-08-06 12:32

15 Replies

38684 Views

Last post by rculpan
2010-08-24 10:38
Where do I send translated xls files to, please?

Last post by Centauri39 « 2010-08-23 08:49

by Centauri39 » 2010-08-23 08:49

0 Replies

7487 Views

Last post by Centauri39
2010-08-23 08:49
Performance optimization possible?

Last post by B « 2010-08-20 17:02
Replies: 3
by winXp » 2010-08-15 14:30

3 Replies

14717 Views

Last post by B
2010-08-20 17:02
No clicking possible

Last post by B « 2010-08-20 15:15
Replies: 1
by nissl » 2010-08-20 13:46

1 Replies

8990 Views

Last post by B
2010-08-20 15:15
blank screen and lock keyboard

Last post by UVnc2009 « 2010-08-19 05:25
Replies: 2
by UVnc2009 » 2010-08-14 05:30

2 Replies

9316 Views

Last post by UVnc2009
2010-08-19 05:25
Outbound connections blocked to internal workstations

Last post by boundless316 « 2010-08-18 13:33
Replies: 8
by boundless316 » 2010-08-16 20:03

8 Replies

29338 Views

Last post by boundless316
2010-08-18 13:33
trouble with WinVNC settings

Last post by xkiz2 « 2010-08-15 20:39

by xkiz2 » 2010-08-15 20:39

0 Replies

6817 Views

Last post by xkiz2
2010-08-15 20:39
VNC Server java app - window is black

Last post by B « 2010-08-13 20:22
Replies: 8
by appyface » 2010-07-21 20:16

8 Replies

24185 Views

Last post by B
2010-08-13 20:22
UIPI and window server 2008

Last post by stephen_li « 2010-08-13 07:40

by stephen_li » 2010-08-13 07:40

0 Replies

6381 Views

Last post by stephen_li
2010-08-13 07:40
hook Mechanism will slow in server 2008

Last post by stephen_li « 2010-08-13 02:58

by stephen_li » 2010-08-13 02:58

0 Replies

6211 Views

Last post by stephen_li
2010-08-13 02:58
error disabling Nagle's algorithim

Last post by looker44 « 2010-08-11 13:45
Replies: 1
by looker44 » 2010-05-22 15:07

1 Replies

7950 Views

Last post by looker44
2010-08-11 13:45
Disconnection problems

Last post by mace « 2010-08-11 08:57
Replies: 4
by mace » 2010-08-06 08:07

4 Replies

13866 Views

Last post by mace
2010-08-11 08:57
changing background wallpaper remotely hangs winvnc?

Last post by ruamdro « 2010-08-10 17:05

by ruamdro » 2010-08-10 17:05

0 Replies

5603 Views

Last post by ruamdro
2010-08-10 17:05
server 2008 crtl+alt+del

Last post by kal10bach « 2010-08-10 15:43

by kal10bach » 2010-08-10 15:43

0 Replies

5759 Views

Last post by kal10bach
2010-08-10 15:43
CTRL ALT DEL to host

Last post by B « 2010-08-10 14:04
Replies: 1
by Thereaper » 2010-08-09 23:55

1 Replies

7747 Views

Last post by B
2010-08-10 14:04
Host Has Closed the Session

Last post by whizpopthat « 2010-08-09 21:43
Replies: 6
by whizpopthat » 2010-07-25 19:02

6 Replies

21510 Views

Last post by whizpopthat
2010-08-09 21:43

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