one of our developers has found the problem. It is a deadlock issue. Please use the following fixed file in future releases.
This is vncdesktopthread.cpp
#include "vncdesktopthread.h"
#include "vncOSVersion.h"
bool g_DesktopThread_running;
bool g_update_triggered;
DWORD WINAPI hookwatch(LPVOID ...
After more 1 000 000 (one million) views on forum for 1.5.0.x development versions... and 1.6.0.0 version
A new stable version, UltraVNC 1.6.1.0 and UltraVNC SC 1.6.1.0 have been released: https://forum.uvnc.com/viewtopic.php?t=38080
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.
A new development version, UltraVNC 1.6.3.0-dev has been released, please test it: https://forum.uvnc.com/viewtopic.php?t=38091
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
A new stable version, UltraVNC 1.6.1.0 and UltraVNC SC 1.6.1.0 have been released: https://forum.uvnc.com/viewtopic.php?t=38080
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.
A new development version, UltraVNC 1.6.3.0-dev has been released, please test it: https://forum.uvnc.com/viewtopic.php?t=38091
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 8 matches
- 2010-07-20 09:37
- Forum: Olders
- Topic: Change Windows Themes --> CRash or Hand VNC Server
- Replies: 2
- Views: 6772
- 2010-07-09 13:03
- Forum: Olders
- Topic: Change Windows Themes --> CRash or Hand VNC Server
- Replies: 2
- Views: 6772
Re: Change Windows Themes --> CRash or Hand VNC Server
err.. I changed the theme on the server side 

- 2010-07-09 13:02
- Forum: Olders
- Topic: Change Windows Themes --> CRash or Hand VNC Server
- Replies: 2
- Views: 6772
Change Windows Themes --> CRash or Hand VNC Server
When a connection to a client (SmartCode Solutions ActiveX or VNC VIewer) is open, changing the windows theme from e.g. classic to standard causes the VNC Server to hang. In this case, the theme change also needs about 30 seconds to complete.
The only way to get around this is by killing the winvnc ...
The only way to get around this is by killing the winvnc ...
- 2009-09-25 08:57
- Forum: Olders
- Topic: Crash seen on the server
- Replies: 2
- Views: 3973
Re: Crash seen on the server
These messages seem to be a problem
1.
-Das Handle ist ungültig. --> Invalid window handle
2.
--Überlappender E/A-Vorgang wird verarbeitet. -->
Overlapped I / O operation is processed
1.
-Das Handle ist ungültig. --> Invalid window handle
2.
--Überlappender E/A-Vorgang wird verarbeitet. -->
Overlapped I / O operation is processed
- 2009-09-25 08:51
- Forum: Olders
- Topic: Crash seen on the server
- Replies: 2
- Views: 3973
Re: Crash seen on the server
.\vncclient.cpp : m_ms_logon set to false.\vncclient.cpp : negotiated version
Entered InitAuthenticate
c:\data\ultravnc\ultravnc project root\ultravnc\winvnc\winvnc\vncPasswd.h : PASSWD : ToText called
.\vncserver.cpp : client 192.168.5.43 verifiedHost 0 prior to adjustment
.\vncserver.cpp : client ...
Entered InitAuthenticate
c:\data\ultravnc\ultravnc project root\ultravnc\winvnc\winvnc\vncPasswd.h : PASSWD : ToText called
.\vncserver.cpp : client 192.168.5.43 verifiedHost 0 prior to adjustment
.\vncserver.cpp : client ...
- 2009-09-25 08:50
- Forum: Olders
- Topic: Crash seen on the server
- Replies: 2
- Views: 3973
Crash seen on the server
Hi, I've seen the server crashing sometimes, but I'm not able to reproduce the error. I have however enabled the log file and am posting it here. Perhaps someone can determine the cause of the problem.
- 2009-08-20 08:13
- Forum: Olders
- Topic: uvnc latest versions speed issues
- Replies: 18
- Views: 24130
Re: uvnc latest versions speed issues
I've have now compared 1.0.2 and 1.0.6.5.
1.0.2 is definitely quicker on XP machines. I have connected 4 clients to the same server and it's here that the difference is really noticeable.
The server images to be transferred basically need no user interaction to change their state, but display the ...
1.0.2 is definitely quicker on XP machines. I have connected 4 clients to the same server and it's here that the difference is really noticeable.
The server images to be transferred basically need no user interaction to change their state, but display the ...
- 2009-08-19 13:37
- Forum: Olders
- Topic: uvnc latest versions speed issues
- Replies: 18
- Views: 24130
Re: uvnc latest versions speed issues
Just wanted to say that I too have seen some performance problems. Will be testing 1.0.2. to see if it is better.
Just a question on my side: Could this be related to the monitor settings used e.g. 1920 x 1200?
Is a there a maximum monitor setting defined somewhere?
Just a question on my side: Could this be related to the monitor settings used e.g. 1920 x 1200?
Is a there a maximum monitor setting defined somewhere?