UltraVNC

The service poll the desktop to see if the logon changed and the desktop part require a restart.
But this should use a lot of cpu,
The desktop part also monitor the systray, to show the systray icon when available. ( this is done every 5 seconds)
Active VNC server logging, perhaps you see some ...

resetting netwerk interface to bring the server back online

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

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 ...

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 ...

@dichvu: Please read here:
- https://github.com/ultravnc/UltraVNC/issues/286

Need to be checked

Should be back working, page update caused it.

@VersusBG: Thanks, updated with a singned version, forgot to sign!

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

@Ivanhoe: Updated, thanks!

Checking, network interface seems down, resetting server.

Can't find the PM.
If you tell me you GitHub login, I will give you read access on git.

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 ...

@dichvu: Howto set password

UltraVNC_1630-dev_x86_Setup.msi /quiet WRAPPED_ARGUMENTS="/setpasswd=12345678"

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

Thanks for the feedback

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 ...

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 ...

AllowProperties=0 is indeed the setting
Verify the the config file location (about show the location), it need to be in the correct file

@ThomasLevering: will check, without manifest the 6.2 is used for all higher version

@WoodyWoody: No, it isn't in the changes list.

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 ...

@Ivanhoe: UltraVNC SC 1.6.2.0-dev: Default settings to ask password has been changed and UltraVNC Viewer listenport is used.

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.

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 ...

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

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 ...

@lwc: Remove dev: Will do, just spending all my time on tracing bug reports.

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 ...

@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