After more 1 000 000 (one 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 welcome

Celebrating the 22th anniversary of the UltraVNC (25th anniversary since the laying of the foundation stone): https://forum.uvnc.com/viewtopic.php?t=38031

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

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

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

Search found 4296 matches

by Rudi De Vos
2025-07-31 19:49
Forum: SC
Topic: SC Online Creator isn't working
Replies: 2
Views: 49031

Re: SC Online Creator isn't working

resetting netwerk interface to bring the server back online
by Rudi De Vos
2025-07-29 18:47
Forum: 1.6.x
Topic: Disable Basic AUTH on Repeater's WebGUI
Replies: 2
Views: 67673

Re: Disable Basic AUTH on Repeater's WebGUI

The repeater has no option for it.
Tested with port 0 but then is just start it on a high port

made a special build, set port to 0 and webio is not started
Then you still can set your settings once using port 80 and set it to 0 to block the later access

https://uvnc.eu/download/1640/repeater_0.zip
by Rudi De Vos
2025-07-29 18:12
Forum: General help
Topic: Disable CopyRect Encoding
Replies: 1
Views: 8560

Re: Disable CopyRect Encoding

Settings are saved in the %appdata%\UltraVNC folder on the viewer PC.
This allow to have different connection for each pc tou connect to
LOCALHOST-5900.vnc
MYREMOTEPC-5901.vnc

Open the viewer, just add some fake servername, goto options and uncheck copyrect and save
Then you will find an extra file ...
by Rudi De Vos
2025-07-11 19:22
Forum: General help
Topic: allowing connections with 3 different passwords
Replies: 3
Views: 59884

Re: allowing connections with 3 different passwords

kubajz :
- Service: It uses the .ini in %ProgramData%\UltraVNC
- Application: It uses this order to look for a config file, %AppData% differs for each user

Check the Log tab it indicate the used config file:
2025-07-11 21:23:29 using config file C:\installfolder\ultravnc.ini
2025-07-11 21:23:29 ...
by Rudi De Vos
2025-07-10 17:49
Forum: 1.6.x
Topic: UltraVNC 1.6.4.0 - Feedbacks
Replies: 17
Views: 277751

Re: UltraVNC 1.6.4.0 - Feedbacks

by Rudi De Vos
2025-07-08 21:56
Forum: General help
Topic: Multi on UltraVNC SC
Replies: 1
Views: 11259

Re: Multi on UltraVNC SC

Need to be checked
by Rudi De Vos
2025-07-08 21:55
Forum: SC
Topic: UltraVNC SC Online Creator not working
Replies: 1
Views: 52482

Re: UltraVNC SC Online Creator not working

Should be back working, page update caused it.
by Rudi De Vos
2025-06-26 16:17
Forum: 1.6.x
Topic: UltraVNC 1.6.4.0 - Feedbacks
Replies: 17
Views: 277751

Re: UltraVNC 1.6.4.0 - Feedbacks

@VersusBG: Thanks, updated with a singned version, forgot to sign!
by Rudi De Vos
2025-06-25 20:14
Forum: 1.6.x
Topic: UltraVNC 1.6.3.0-dev - Feedbacks
Replies: 13
Views: 221194

Re: UltraVNC 1.6.3.0-dev - Feedbacks

dichvu wrote: 2025-06-23 03:42

Code: Select all

Setup.msi /quiet WRAPPED_ARGUMENTS="ALLUSERS=1"
@dichvu: If ALLUSERS is a Inno Setup commandline is need to be like this with a /
- https://jrsoftware.org/ishelp/index.php ... tupcmdline

Code: Select all

Setup.msi /quiet WRAPPED_ARGUMENTS="/ALLUSERS=1"
by Rudi De Vos
2025-06-23 20:52
Forum: 1.6.x
Topic: UltraVNC 1.6.4.0 - Feedbacks
Replies: 17
Views: 277751

Re: UltraVNC 1.6.4.0 - Feedbacks

@Ivanhoe: Updated, thanks!
by Rudi De Vos
2025-06-23 18:01
Forum: SC
Topic: UltraVNC SC Online Creator's down?
Replies: 3
Views: 121392

Re: UltraVNC SC Online Creator's down?

Checking, network interface seems down, resetting server.
by Rudi De Vos
2025-06-23 17:55
Forum: DSM plugin
Topic: Source code of SecureVNC Plugin
Replies: 1
Views: 12170

Re: Source code of SecureVNC Plugin

Can't find the PM.
If you tell me you GitHub login, I will give you read access on git.
by Rudi De Vos
2025-06-22 21:06
Forum: 1.6.x
Topic: UltraVNC 1.6.4.0 - Feedbacks
Replies: 17
Views: 277751

UltraVNC 1.6.4.0 - Feedbacks

Feedbacks for UltraVNC 1.6.4.0 and UltraVNC SC 1.6.4.0 (experimental) in this topic.

Changelog since the previous stable build:
Version 1.6.4.0 – June 2025
- Update viewer layout
- Viewer, SessionDialog wrong size after dpi change (#278)
- Too small msg buffer size fix
- Big border fix ...
by Rudi De Vos
2025-06-19 19:39
Forum: 1.6.x
Topic: UltraVNC 1.6.3.0-dev - Feedbacks
Replies: 13
Views: 221194

Re: UltraVNC 1.6.3.0-dev - Feedbacks

@dichvu: Howto set password

UltraVNC_1630-dev_x86_Setup.msi /quiet WRAPPED_ARGUMENTS="/setpasswd=12345678"
by Rudi De Vos
2025-06-18 20:33
Forum: 1.6.x
Topic: UltraVNC 1.6.3.0-dev - Feedbacks
Replies: 13
Views: 221194

Re: UltraVNC 1.6.3.0-dev - Feedbacks

@ThomasLevering: info is indeed bigger then 1024
TCHAR msg[1024] and wchar_t w_body[1024]; increased to 2048

Thanks for the feedback
by Rudi De Vos
2025-06-17 19:28
Forum: General help
Topic: What is SendExtraMouse in .ini ?
Replies: 1
Views: 26730

Re: What is SendExtraMouse in .ini ?

The time stamp for the event, in milliseconds. If this parameter is 0, the system will provide its own time stamp.
dwExtraInfo
if set #define DWEXTRA_VNC_REMOTE 0x564e4300 is used

Date: donderdag 9 augustus 2018
Committer: chrispeto
Flag to send mouse extra parameter with mouse events

Sorry, can ...
by Rudi De Vos
2025-06-17 17:39
Forum: General help
Topic: Cursor
Replies: 3
Views: 17143

Re: Cursor

Posible solutions that worked for other

**1)
If you have trouble seeing a mouse cursor on a Windows 10 machine with no mouse attached, you can enable the "mouse control using Numpad keys" feature:

Open start menu.
Click the "Settings" cog
Click the "Ease of Access" menu item
Select "Mouse" in the ...
by Rudi De Vos
2025-06-16 21:35
Forum: General help
Topic: How to disable the "Setting" function?
Replies: 1
Views: 25926

Re: How to disable the "Setting" function?

AllowProperties=0 is indeed the setting
Verify the the config file location (about show the location), it need to be in the correct file
by Rudi De Vos
2025-06-16 20:36
Forum: 1.6.x
Topic: UltraVNC 1.6.3.0-dev - Feedbacks
Replies: 13
Views: 221194

Re: UltraVNC 1.6.3.0-dev - Feedbacks

@ThomasLevering: will check, without manifest the 6.2 is used for all higher version
by Rudi De Vos
2025-06-04 19:37
Forum: 1.6.x
Topic: UltraVNC 1.6.3.0-dev - Feedbacks
Replies: 13
Views: 221194

Re: UltraVNC 1.6.3.0-dev - Feedbacks

@WoodyWoody: No, it isn't in the changes list.
by Rudi De Vos
2025-06-02 20:25
Forum: 1.6.x
Topic: UltraVNC 1.6.3.0-dev - Feedbacks
Replies: 13
Views: 221194

UltraVNC 1.6.3.0-dev - Feedbacks

Feedbacks for UltraVNC 1.6.3.0-dev (test) and UltraVNC SC 1.6.3.0-dev (experimental) in this topic.

Changelog since the previous stable build:
Version 1.6.3.0-dev – June 2025
- vncviewer crash fix (#58)
- Empty password detection (also for SC) fix
- Bug in undefer_input() that misplaced the input ...
by Rudi De Vos
2025-05-21 20:30
Forum: 1.6.x
Topic: UltraVNC 1.6.1.0 - Feedbacks
Replies: 38
Views: 410536

Re: UltraVNC 1.6.1.0 - Feedbacks

@Ivanhoe: UltraVNC SC 1.6.2.0-dev: Default settings to ask password has been changed and UltraVNC Viewer listenport is used.
by Rudi De Vos
2025-05-20 20:10
Forum: 1.6.x
Topic: UltraVNC 1.6.1.0 - Feedbacks
Replies: 38
Views: 410536

Re: UltraVNC 1.6.1.0 - Feedbacks

Still in the ultravnc.ini file.

The default location of this file has changed to %ProgramData% but there is a fallback system.

If you open the About window, the config file location is indicated.
by Rudi De Vos
2025-05-20 20:07
Forum: 1.6.x
Topic: UltraVNC 1.6.2.0-dev - Feedbacks
Replies: 3
Views: 30421

UltraVNC 1.6.2.0-dev - Feedbacks

Feedbacks for UltraVNC 1.6.2.0-dev (test) and UltraVNC SC 1.6.2.0-dev (experimental) in this topic.

Changelog since the previous stable build:
Version 1.6.2.0-dev – May 2025
- FileTransfer win11 # 57212802 fix
- Load config in listen mode fix
- Refactor default/server specific settings added option ...
by Rudi De Vos
2025-05-20 17:40
Forum: General help
Topic: Viewer loses control rights on the Server
Replies: 1
Views: 45895

Re: Viewer loses control rights on the Server

When you start UltraVNC Server as normal user you can't control any applications started with run as admin.

To be able to control that program:
- UltraVNC Server (winvnc.exe) needs to be started with runas admin
OR
- UltraVNC Server needs to be running as service
by Rudi De Vos
2025-05-19 18:02
Forum: 1.6.x
Topic: UltraVNC 1.6.1.0 - Feedbacks
Replies: 38
Views: 410536

Re: UltraVNC 1.6.1.0 - Feedbacks

Viewer config files are under review

Fixing: listen doesn't load settings
options.vnc and custom.vnc
Adding label that show default options.vnc location and an extra option to use only the default (options.vnc) file.
This will make configuration simpler, the overwrite by the custom file make it ...
by Rudi De Vos
2025-05-16 22:56
Forum: 1.6.x
Topic: UltraVNC 1.6.1.0 - Feedbacks
Replies: 38
Views: 410536

Re: UltraVNC 1.6.1.0 - Feedbacks

@lwc: Remove dev: Will do, just spending all my time on tracing bug reports.
by Rudi De Vos
2025-05-16 17:41
Forum: 1.6.x
Topic: UltraVNC 1.6.1.0 - Feedbacks
Replies: 38
Views: 410536

Re: UltraVNC 1.6.1.0 - Feedbacks

Jojo67 : Someone insisted on changing the default location to %appdata%
1) vncviewer.exe folder is used
2) When this folder is not writable, %appdata% is used
3) when this folder has no write access %TEMP% is used

Verified the src CSIDL_COMMON_APPDATA %programdata% isn't used

The viewer has a ...
by Rudi De Vos
2025-05-15 20:00
Forum: 1.6.x
Topic: UltraVNC 1.6.1.0 - Feedbacks
Replies: 38
Views: 410536

Re: UltraVNC 1.6.1.0 - Feedbacks

@yan487: 8 colors:
If you set 8 colors and save and connect to a server.
Close viewer
Open viewer and select same host
Are the 8 colors set or is the value lost?

Thanks
by Rudi De Vos
2025-05-14 18:14
Forum: Feature requests
Topic: Problem with the remote PC's primary display when the remote PC and the local PC each have two monitors.
Replies: 4
Views: 132639

Re: Problem with the remote PC's primary display when the remote PC and the local PC each have two monitors.

Can you also provide the UltraVNC Viewer display settings?
There are a lot of options.

What do you want 2x 2K displayed on 2x HD resized or with scrollbars?
Are you using the DDEngine, should be indicated by the Viewer?

Thanks
Rudi