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

Windows Server 2003 crash on disconnect

Post Reply
Bithunter
8
8
Posts: 18
Joined: 2008-09-16 14:51

Windows Server 2003 crash on disconnect

Post by Bithunter »

I have a Win2003 R2 x64 with SQL Server 2000, Hamachi and VNC. I´ve configured VNC 64 1.0.9.5 the usual way (mirror driver, etc).When I close the client window (to disconnect) the server restarts. No logs are generated, just an unexpected restart (of the whole server, of course).

I´ve recently replaced that server, the old server has the same behavior, but I thought it will be gone with the new server arrival ... but it still occurs.

Any idea about what can be happening?

Thanks!
User avatar
Rudi De Vos
Admin & Developer
Admin & Developer
Posts: 6978
Joined: 2004-04-23 10:21
Contact:

Re: Windows Server 2003 crash on disconnect

Post by Rudi De Vos »

Try without the mirror driver.

The driver is the only part that has kernel memory access and can BSOD
the server...
UltraVNC links (join us on social networks):
- Website: https://uvnc.com/
- Forum: https://forum.uvnc.com/
- GitHub sourcecode: https://github.com/ultravnc/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
- uvnc2me: https://uvnc2me.com/
Bithunter
8
8
Posts: 18
Joined: 2008-09-16 14:51

Re: Windows Server 2003 crash on disconnect

Post by Bithunter »

Rudi De Vos wrote:Try without the mirror driver.

The driver is the only part that has kernel memory access and can BSOD
the server...
Without driver is hard to manage remote screen (I have to manually refresh the screen continuously).

I have several similar servers, and they have the mirror driver and work fine (with similar software installed, even not exacly the same). I suspect of some other software, but not sure how can I test which is causing troubles when used simultaneously with VNC ...

One thing I´ve noted: Crash only occurs when VNC is configured to "lock workstation". "Logoff workstation" works with no problem, and "do nothing" also.

Could be a workaround?

Thanks again!
redge
1000
1000
Posts: 6797
Joined: 2004-07-03 17:05
Location: Switzerland - Geneva

Re: Windows Server 2003 crash on disconnect

Post by redge »

Bithunter

1.0.9.5.1 (current beta) fix (not yet available 64bit test)

*winvnc default server scale
*locksetting= GUI parser () exclusive single
0 - none
1 - lock workstation on disconnect (w2k/XP/w2k3/w2k8/vista/w2k8r2 Only)
2 - logoff on disconnect

[post=83085][/post]

only for your information (32bit only for now)

without driver
you should have schook.dll required for fast update without mirror driver

winvnc - Properties
[v] Poll Fullscreen
[ ] Poll Forground [_] Poll Console Window Only
[_] Poll Window Under Cursor [_] Poll On event Only
[v] System Hookdll
[_] Video driver
[v] Low accuracy

Winvnc - Admin Properties
With this settings you can keep follwing off
[_] Remove Aero
[v] Remove Wallpaper
[v] Capture Alpha-Blending
Last edited by redge on 2011-01-24 00:33, edited 1 time in total.
UltraVNC 1.0.9.6.1 (built 20110518)
Windows OS: XP Home + Vista Business + 7 Home
Only experienced user, [u]not[/u] developer
Post Reply