General help

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

2025-12-05: Celebrating the 23th anniversary of the UltraVNC (26th anniversary since the laying of the foundation stone): https://forum.uvnc.com/viewtopic.php?t=38130

2025-12-03: Could you please complete our poll/survey? Renaming UltraVNC files and service to be more clear: https://forum.uvnc.com/viewtopic.php?t=38128
There was a problem to vote, it is solved now! Thanks in advance!

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

Join us on social networks and share our announcements:
- Website: https://uvnc.com/
- GitHub: https://github.com/ultravnc
- Mastodon: https://mastodon.social/@ultravnc
- Bluesky/AT Protocol: https://bsky.app/profile/ultravnc.bsky.social
- Facebook: https://www.facebook.com/ultravnc1
- X/Twitter: https://x.com/ultravnc1
- Reddit community: https://www.reddit.com/r/ultravnc
- OpenHub: https://openhub.net/p/ultravnc

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319 topics

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Announcements

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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

2954 Views

Last post by Ludovic
2025-12-05 11:12
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

641997 Views

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

Last post by Rudi De Vos « 2025-09-29 19:47
Posted in 1.6.x
Replies: 22
by Rudi De Vos » 2025-06-22 21:06 » in 1.6.x

22 Replies

810797 Views

Last post by Rudi De Vos
2025-09-29 19:47
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

555530 Views

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

Topics

Replies

Views

Last post

[solved] VNC over OpenVPN didnt work - MTU problem

Last post by Chaka « 2022-09-01 09:13

by Chaka » 2022-09-01 09:13

0 Replies

3521 Views

Last post by Chaka
2022-09-01 09:13
How can I delete the server history?

Last post by andrew92 « 2022-08-25 12:57
Replies: 10
by toombaumarkt » 2016-05-16 20:55

10 Replies

44568 Views

Last post by andrew92
2022-08-25 12:57
UltraVNC_x86 and x64 are uncompatible (ULTRAVNC SERVER)

Last post by Rudi De Vos « 2022-08-24 09:21
Replies: 1
by Koller » 2022-08-24 06:53

1 Replies

3300 Views

Last post by Rudi De Vos
2022-08-24 09:21
response speed - Latency

Last post by Rudi De Vos « 2022-08-23 18:42
Replies: 2
by crturner » 2021-11-18 06:57

2 Replies

4368 Views

Last post by Rudi De Vos
2022-08-23 18:42
User Rudi in my logfiles, is that hardcoded??

Last post by Rudi De Vos « 2022-08-19 18:07
Replies: 2
by NOT-Rudi » 2022-05-26 14:49

2 Replies

5378 Views

Last post by Rudi De Vos
2022-08-19 18:07
Multiviewer options

Last post by jkr150172 « 2022-08-13 12:08
Replies: 3
by jkr150172 » 2022-08-08 13:48

3 Replies

5194 Views

Last post by jkr150172
2022-08-13 12:08
Multiple clients when using repeater?

Last post by gerryw « 2022-07-31 00:12

by gerryw » 2022-07-31 00:12

0 Replies

3259 Views

Last post by gerryw
2022-07-31 00:12
Custom Installation Path

Last post by RobM « 2022-07-29 11:46

by RobM » 2022-07-29 11:46

0 Replies

3360 Views

Last post by RobM
2022-07-29 11:46
Hiding UltraVnc command line from task manager

Last post by wssddc « 2022-07-26 20:30

by wssddc » 2022-07-26 20:30

0 Replies

3282 Views

Last post by wssddc
2022-07-26 20:30
Mirror driver questions

Last post by jcrmatos « 2022-07-13 07:50
Replies: 4
by jcrmatos » 2022-07-10 14:20

4 Replies

4966 Views

Last post by jcrmatos
2022-07-13 07:50
A time based connection

Last post by DVCVNC « 2022-07-08 11:10
Replies: 2
by DVCVNC » 2022-07-07 12:10

2 Replies

3681 Views

Last post by DVCVNC
2022-07-08 11:10
changing image on "toogle remote input and remote blank monitor"

Last post by Rudi De Vos « 2022-07-07 17:31
Replies: 1
by tgMA22 » 2022-07-05 07:06

1 Replies

3177 Views

Last post by Rudi De Vos
2022-07-07 17:31
UltraVNC Viewer Task is stopped at startup

Last post by fdres0 « 2022-07-01 06:46

by fdres0 » 2022-07-01 06:46

0 Replies

3796 Views

Last post by fdres0
2022-07-01 06:46
copy/paste from server

Last post by rmangiacapre « 2022-06-29 07:54

by rmangiacapre » 2022-06-29 07:54

0 Replies

3423 Views

Last post by rmangiacapre
2022-06-29 07:54
server with 3 screens only offer 2 to client

Last post by VNCHELP890 « 2022-06-21 22:23
Replies: 1
by daxtrajero » 2022-06-13 21:18

1 Replies

3715 Views

Last post by VNCHELP890
2022-06-21 22:23
Maximum Viewers connection

Last post by seun2022 « 2022-06-19 14:30

by seun2022 » 2022-06-19 14:30

0 Replies

7129 Views

Last post by seun2022
2022-06-19 14:30
Version Upgrade

Last post by xwraith « 2022-06-15 12:41
Replies: 2
by xwraith » 2022-06-12 12:58

2 Replies

3850 Views

Last post by xwraith
2022-06-15 12:41
black the server screen when I'm remotely connected

Last post by Rudi De Vos « 2022-06-13 17:28
Replies: 2
by daxtrajero » 2022-06-12 13:10

2 Replies

3709 Views

Last post by Rudi De Vos
2022-06-13 17:28
How to disable showing my operation action on Server side

Last post by daxtrajero « 2022-06-12 13:07
Replies: 2
by ennio » 2012-03-06 12:55

2 Replies

18786 Views

Last post by daxtrajero
2022-06-12 13:07
Several characters coming up as questionmarks

Last post by VNCHELP890 « 2022-06-02 15:52
Replies: 1
by lawftyg » 2022-06-02 11:36

1 Replies

2830 Views

Last post by VNCHELP890
2022-06-02 15:52
Uninstall Script

Last post by ade210 « 2022-06-02 14:04
Replies: 6
by ade210 » 2022-05-19 20:50

6 Replies

8847 Views

Last post by ade210
2022-06-02 14:04
Several characters coming up as questionmarks

Last post by lawftyg « 2022-06-02 12:57

by lawftyg » 2022-06-02 12:57

0 Replies

2631 Views

Last post by lawftyg
2022-06-02 12:57
UVNC on Windows Server 2022

Last post by Rudi De Vos « 2022-05-28 18:33
Replies: 1
by sman4k » 2022-05-25 13:26

1 Replies

2545 Views

Last post by Rudi De Vos
2022-05-28 18:33
UVNC_Launch does not find saved servers on Win7 and Win10

Last post by aiotech « 2022-05-27 21:10

by aiotech » 2022-05-27 21:10

0 Replies

2756 Views

Last post by aiotech
2022-05-27 21:10
UVNC_Launch does not find saved servers on Windows 7

Last post by aiotech « 2022-05-27 17:25

by aiotech » 2022-05-27 17:25

0 Replies

2633 Views

Last post by aiotech
2022-05-27 17:25
host name in .vnc file by file name

Last post by iceman « 2022-05-23 12:31

by iceman » 2022-05-23 12:31

0 Replies

2494 Views

Last post by iceman
2022-05-23 12:31
MS-Logon - Single Sign On

Last post by nerkgeek « 2022-05-21 18:55

by nerkgeek » 2022-05-21 18:55

0 Replies

2554 Views

Last post by nerkgeek
2022-05-21 18:55
Clipboard stops working

Last post by Sander02 « 2022-05-18 13:18

by Sander02 » 2022-05-18 13:18

0 Replies

2626 Views

Last post by Sander02
2022-05-18 13:18
SC binary terminate just after HOST is clicked

Last post by lazna « 2022-05-16 12:51
Replies: 1
by lazna » 2022-04-29 07:24

1 Replies

2350 Views

Last post by lazna
2022-05-16 12:51
About COMMERCIAL USE of ddengine.dll(desktop duplication engine)

Last post by ShowKen « 2022-05-16 04:38

by ShowKen » 2022-05-16 04:38

0 Replies

2538 Views

Last post by ShowKen
2022-05-16 04:38
Authentication rejected

Last post by Rudi De Vos « 2022-05-10 17:40
Replies: 1
by ASF » 2022-05-08 22:07

1 Replies

45095 Views

Last post by Rudi De Vos
2022-05-10 17:40
UltraVNC is Stuck in blue screen or closes right away

Last post by Akhil « 2022-05-05 10:24

by Akhil » 2022-05-05 10:24

0 Replies

2553 Views

Last post by Akhil
2022-05-05 10:24
Version upgrade

Last post by prtripat « 2022-05-02 07:45

by prtripat » 2022-05-02 07:45

0 Replies

2566 Views

Last post by prtripat
2022-05-02 07:45
Connect to a specific app on a remote PC?

Last post by UglyStuff « 2022-04-30 18:39

by UglyStuff » 2022-04-30 18:39

0 Replies

2923 Views

Last post by UglyStuff
2022-04-30 18:39
UltraVNC Viewer for use on Android?

Last post by VNCHELP890 « 2022-04-28 19:59
Replies: 3
by solid7111 » 2022-03-30 19:30

3 Replies

3761 Views

Last post by VNCHELP890
2022-04-28 19:59
Service mode: connection lost immediately after logging in

Last post by SL9 « 2022-04-28 19:33
Replies: 2
by SL9 » 2022-04-16 04:50

2 Replies

3472 Views

Last post by SL9
2022-04-28 19:33
Both SC and viewer behind NAT

Last post by lazna « 2022-04-25 07:48

by lazna » 2022-04-25 07:48

0 Replies

2606 Views

Last post by lazna
2022-04-25 07:48
Does UltraVNC work on Windows 11?

Last post by VNCHELP890 « 2022-04-20 17:02
Replies: 2
by schmiedingm » 2022-04-15 22:25

2 Replies

3154 Views

Last post by VNCHELP890
2022-04-20 17:02
TurboVNC encoding algo and mirror driver in newer versions

Last post by SL9 « 2022-04-16 04:28
Replies: 2
by SL9 » 2022-04-11 05:01

2 Replies

2981 Views

Last post by SL9
2022-04-16 04:28
Log users connections only

Last post by Rudi De Vos « 2022-04-15 17:06
Replies: 1
by Jerome_D » 2022-04-13 17:54

1 Replies

3159 Views

Last post by Rudi De Vos
2022-04-15 17:06
When pressing the keys Ctrl, Shift and etc on the server side is constantly pressed and released

Last post by laghatelyan « 2022-04-13 08:01
Replies: 1
by laghatelyan » 2022-04-04 17:38

1 Replies

2602 Views

Last post by laghatelyan
2022-04-13 08:01
Cursor is a ring

Last post by todiet « 2022-04-07 05:48
Replies: 1
by todiet » 2022-04-06 12:34

1 Replies

2713 Views

Last post by todiet
2022-04-07 05:48
Unable To Install UltraVNC

Last post by VNCHELP890 « 2022-04-06 13:16
Replies: 1
by Derekbarfield » 2022-04-05 12:46

1 Replies

2638 Views

Last post by VNCHELP890
2022-04-06 13:16
Linux client that could connect to Windows uvnc server

Last post by Rudi De Vos « 2022-04-02 13:23
Replies: 1
by JoeAvarage » 2022-04-02 10:04

1 Replies

2796 Views

Last post by Rudi De Vos
2022-04-02 13:23
Auxiliary mouse buttons not working

Last post by zolm « 2022-03-30 15:42

by zolm » 2022-03-30 15:42

0 Replies

2632 Views

Last post by zolm
2022-03-30 15:42
Server Closed Connection

Last post by Rudi De Vos « 2022-03-29 17:34
Replies: 3
by rmckinnon » 2022-03-25 17:17

3 Replies

3517 Views

Last post by Rudi De Vos
2022-03-29 17:34
Winvnc.exe keeps flapping

Last post by Rudi De Vos « 2022-03-24 19:00
Replies: 1
by sliverfish » 2022-03-24 13:18

1 Replies

2772 Views

Last post by Rudi De Vos
2022-03-24 19:00
Limit client connect to 1 IP address

Last post by wilx « 2022-03-23 07:47
Replies: 2
by wilx » 2022-03-22 16:42

2 Replies

2637 Views

Last post by wilx
2022-03-23 07:47
"Who is" UltraVNC?

Last post by AndmanZ « 2022-03-17 07:13
Replies: 2
by AndmanZ » 2022-03-16 16:16

2 Replies

3190 Views

Last post by AndmanZ
2022-03-17 07:13
Mouse in VM not aligned with cursor

Last post by Rudi De Vos « 2022-03-15 19:30
Replies: 1
by jasonakad » 2022-03-15 18:30

1 Replies

2485 Views

Last post by Rudi De Vos
2022-03-15 19:30

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