I had a problem using the MS logon feature of RC18. I installed the MSLogon v.2 fix and that fixed the problem.
UltraVNC Server: Windows 2000 Professional, SP4
Domain: local workgroup
Problem - this event appears on the server whenever an UltraVNC authentication is attempted. But the VNC connection works anyway:
EVENT # 3707
EVENT LOG Security
EVENT TYPE Audit Failure
SOURCE Security
CATEGORY Account Logon
EVENT ID 681
USERNAME NT AUTHORITY\SYSTEM
COMPUTERNAME COMPNAME
TIME 8/23/2004 9:17:51 PM
MESSAGE The logon to account: isdiua
by: MICROSOFT_AUTHENTICATION_PACKAGE_V1_0
from workstation: COMPNAME
failed. The error code was: 3221225572
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
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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
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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:
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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
MS Logon problems with 1.0.0 RC 18 - fixed
The message you got with the "old" ms-logon is not a failure but intended. It checks for an open Guest account which will allow attempts with wrong username/password combinations to succeed under WinXP.
The new ms-logon works differently by impersonating the authenticated user and then check the authorization, i.e. group membership.
As long as the Guest account is not used for one of the groups there should be no problem.
The new ms-logon works differently by impersonating the authenticated user and then check the authorization, i.e. group membership.
As long as the Guest account is not used for one of the groups there should be no problem.
BobBabai:
I had some issues with MS LOGON included in RC18.
Users in 'USERS' group had complete access once logged in, instead of having ReadOnly access.
Now, after installed MSLogon v2 it works perfect. :-o
You can download here:
ultravnc-newMSlogon-2.zip http://dl.ultravnc.net
It is explained in this topic:
[topic=637][/topic]
UltraVNC rocks. Is the best vnc server/client i've tried.
Thanks Marscha.
I had some issues with MS LOGON included in RC18.
Users in 'USERS' group had complete access once logged in, instead of having ReadOnly access.
Now, after installed MSLogon v2 it works perfect. :-o
You can download here:
ultravnc-newMSlogon-2.zip http://dl.ultravnc.net
It is explained in this topic:
[topic=637][/topic]
UltraVNC rocks. Is the best vnc server/client i've tried.
Thanks Marscha.
- Rudi De Vos
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