MS-Logon Plugin

2026-09-07: UltraVNC Extend Display: https://uvnc.com/products/ultravnc-extend-display.html | viewtopic.php?t=38201

2026-09-07: After more 5 000 000 (five million) views on forum for 1.8.x.x development versions...
A new stable version, UltraVNC 1.8.2.9 has been released: viewtopic.php?t=38203
Feedback is always welcome

2026-04-01: After 1.7.x, 1.8.x release builds need tests and feedback: viewtopic.php?t=38158

2026-03-11: CVE-2026-3787 and CVE-2026-4962 - Clarification: viewtopic.php?t=38155

2025-12-02: We need help: English Wikipedia UltraVNC page has been requested to deletion: viewtopic.php?t=38127
Any help is welcome to improve the UltraVNC page and/or to comment on the Wikipedia Talk page

2025-06-25: 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: viewtopic.php?t=38095
Feedback is always welcome

2025-05-06: Forum password change request: viewtopic.php?t=38078

2023-09-21: Important: Please update to latest version before to create a reply, a topic or an issue: viewtopic.php?t=37864

Development: UltraVNC development is always here... Any help is welcome
Feedback is welcome

Help is very needed for:
Windows ARM/ARM64 support: viewtopic.php?t=38163 / https://github.com/ultravnc/UltraVNC/issues/346
macOS support: viewtopic.php?t=38164 / https://github.com/ultravnc/UltraVNC/issues/347
Linux support: viewtopic.php?t=38165 / https://github.com/ultravnc/UltraVNC/issues/348
*BSD support: viewtopic.php?t=38166 / https://github.com/ultravnc/UltraVNC/issues/349
*Solaris support: viewtopic.php?t=38167 / https://github.com/ultravnc/UltraVNC/issues/350

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Announcements

Replies

Views

Last post

UltraVNC 1.8.2.9 Released

Last post by Ludovic « 2026-09-08 19:05
Posted in Announcements

by Ludovic » 2026-09-08 19:05 » in Announcements

0 Replies

7464 Views

Last post by Ludovic
2026-09-08 19:05
UltraVNC 1.8.X.X - Feedback

Last post by Benoit56325 « 2026-09-11 08:21
Posted in 1.8.x
Replies: 144
by RudiDeVos » 2026-03-26 21:19 » in 1.8.x
1

2

3

4

5
144 Replies

5700415 Views

Last post by Benoit56325
2026-09-11 08:21
Celebrating the 23th anniversary of the UltraVNC (26th anniversary since the laying of the foundation stone)

Last post by Ludovic « 2025-12-05 11:12
Posted in Announcements

by Ludovic » 2025-12-05 11:12 » in Announcements

0 Replies

1309816 Views

Last post by Ludovic
2025-12-05 11:12
Poll: Renaming UltraVNC files and service to be more clear

Last post by Ludovic « 2025-12-03 20:20
Posted in Announcements

by Ludovic » 2025-12-03 20:20 » in Announcements

0 Replies

1019393 Views

Last post by Ludovic
2025-12-03 20:20
Important: Please update to latest version before to create a reply, a topic or an issue

Last post by Ludovic « 2023-09-21 10:06
Posted in Announcements

by Ludovic » 2023-09-21 10:06 » in Announcements

0 Replies

1758457 Views

Last post by Ludovic
2023-09-21 10:06

Topics

Replies

Views

Last post

Transparent authentication

Last post by yossik « 2009-10-20 18:15
Replies: 12
by NoFastidies » 2008-02-26 13:08

12 Replies

78128 Views

Last post by yossik
2009-10-20 18:15
[PATCH] MSLogon upgrade to use 64bit keys instead of 31bit

Last post by krunge « 2009-10-19 14:39
Replies: 9
by llyzs » 2009-10-11 09:56

9 Replies

59547 Views

Last post by krunge
2009-10-19 14:39
Multiple Login Groups

Last post by etienne53 « 2009-10-17 23:07

by etienne53 » 2009-10-17 23:07

0 Replies

27487 Views

Last post by etienne53
2009-10-17 23:07
Authentication failed error with MSlogon II

Last post by reaper829 « 2009-10-12 12:03
Replies: 13
by suniltantry » 2006-06-12 05:41

13 Replies

69519 Views

Last post by reaper829
2009-10-12 12:03
No "READ ONLY" on XP Home?

Last post by reaper829 « 2009-10-09 19:31
Replies: 2
by sb37 » 2007-08-07 22:22

2 Replies

23817 Views

Last post by reaper829
2009-10-09 19:31
Group 3 (Read-only) doesn't work in MS Logon

Last post by reaper829 « 2009-10-09 19:25

by reaper829 » 2009-10-09 19:25

0 Replies

14419 Views

Last post by reaper829
2009-10-09 19:25
Service seems to run, but doesn't accept connections

Last post by jmedway « 2009-09-17 00:09

by jmedway » 2009-09-17 00:09

0 Replies

14306 Views

Last post by jmedway
2009-09-17 00:09
possible bug in 1.0.6.4 with MSLogonII + Query on Incoming

Last post by BNI « 2009-08-19 15:24
Replies: 1
by BNI » 2009-08-14 09:38

1 Replies

14718 Views

Last post by BNI
2009-08-19 15:24
MSLogon II does not work with Win 2K

Last post by giovanni68 « 2009-07-31 08:13
Replies: 2
by giovanni68 » 2009-07-30 16:10

2 Replies

16626 Views

Last post by giovanni68
2009-07-31 08:13
old passwords

Last post by roniprado « 2009-07-22 17:43

by roniprado » 2009-07-22 17:43

0 Replies

11149 Views

Last post by roniprado
2009-07-22 17:43
MS Logon II - Auth. failed for a non admin account

Last post by gamegarro « 2009-07-06 01:22
Replies: 6
by Tifus » 2009-04-27 08:02

6 Replies

26713 Views

Last post by gamegarro
2009-07-06 01:22
How does UltraVNC authenticate? LDAP Kerberos?

Last post by ewizzle « 2009-06-07 01:13
Replies: 2
by ewizzle » 2009-06-05 23:44

2 Replies

18731 Views

Last post by ewizzle
2009-06-07 01:13
This server does not have a valid password enabled.

Last post by node808 « 2009-04-21 12:33
Replies: 7
by node808 » 2009-04-15 21:58

7 Replies

42934 Views

Last post by node808
2009-04-21 12:33
Connect without prompt user and pwd

Last post by redge « 2009-04-20 16:50
Replies: 1
by icematrix » 2009-03-30 06:39

1 Replies

14314 Views

Last post by redge
2009-04-20 16:50
Registering UltraVNC MS-Logon II protocol number

Last post by RudiDeVos « 2009-03-24 10:31
Replies: 8
by pasik » 2009-03-10 18:40

8 Replies

34532 Views

Last post by RudiDeVos
2009-03-24 10:31
How to display the connected user?

Last post by domo « 2009-03-15 11:14
Replies: 2
by domo » 2009-03-13 14:38

2 Replies

14988 Views

Last post by domo
2009-03-15 11:14
This server doens not have a valid password enbled

Last post by MarceRos « 2009-03-08 16:30
Replies: 30
by XP and Win2003 » 2005-12-26 15:32
1

2
30 Replies

227853 Views

Last post by MarceRos
2009-03-08 16:30
don't understand the acl

Last post by redge « 2009-03-04 20:22
Replies: 1
by revelation.now » 2009-03-04 10:21

1 Replies

12026 Views

Last post by redge
2009-03-04 20:22
Windows XP Home with MS Logon-I does not work with 1.0.5.4

Last post by vatbier « 2009-03-03 08:17
Replies: 3
by vatbier » 2009-02-28 22:21

3 Replies

17114 Views

Last post by vatbier
2009-03-03 08:17
Authenticaiton Problems

Last post by KHabershon « 2009-02-03 16:30

by KHabershon » 2009-02-03 16:30

0 Replies

10770 Views

Last post by KHabershon
2009-02-03 16:30
MS-Logon Settings Storage Location

Last post by redge « 2009-01-28 22:49
Replies: 1
by axelseaa » 2009-01-28 21:53

1 Replies

12131 Views

Last post by redge
2009-01-28 22:49
MSLogon Domain Authentication when user is remote

Last post by bigjohn « 2009-01-18 17:15
Replies: 1
by MentalNomad » 2008-06-18 20:20

1 Replies

15526 Views

Last post by bigjohn
2009-01-18 17:15
uvnc doesn't work in ms-logon-mode

Last post by bigjohn « 2009-01-18 17:13
Replies: 3
by buegeleisen » 2008-11-28 12:21

3 Replies

18689 Views

Last post by bigjohn
2009-01-18 17:13
MSLOGON problem. Un/groups are not shared properly from DC

Last post by Tranthom « 2008-12-19 02:23

by Tranthom » 2008-12-19 02:23

0 Replies

10620 Views

Last post by Tranthom
2008-12-19 02:23
Please help me with this!!

Last post by RudiDeVos « 2008-12-11 20:03
Replies: 1
by cypress98 » 2008-12-11 15:54

1 Replies

11387 Views

Last post by RudiDeVos
2008-12-11 20:03
multiple users

Last post by rmcinnes « 2008-12-02 01:20
Replies: 14
by yawnmoth » 2006-05-07 00:26

14 Replies

73248 Views

Last post by rmcinnes
2008-12-02 01:20
Basic Functionality Question

Last post by mudputty « 2008-11-26 17:47

by mudputty » 2008-11-26 17:47

0 Replies

9287 Views

Last post by mudputty
2008-11-26 17:47
Trying to understand ms-logon

Last post by mariajoth « 2008-11-20 10:11
Replies: 2
by thetechteacher » 2008-03-02 03:22

2 Replies

17209 Views

Last post by mariajoth
2008-11-20 10:11
Session locking

Last post by heybigal « 2008-11-10 15:16

by heybigal » 2008-11-10 15:16

0 Replies

9102 Views

Last post by heybigal
2008-11-10 15:16
MSLogonACL from loginscript

Last post by SausageDog « 2008-10-10 06:42
Replies: 2
by kooijt » 2006-12-05 09:08

2 Replies

15612 Views

Last post by SausageDog
2008-10-10 06:42
Not getting it

Last post by mr2ns « 2008-09-13 04:44
Replies: 5
by mr2ns » 2008-08-08 01:44

5 Replies

23842 Views

Last post by mr2ns
2008-09-13 04:44
Help with MS logon - I'm missing something

Last post by SplatWack1 « 2008-09-11 21:18
Replies: 4
by SplatWack1 » 2008-09-10 18:48

4 Replies

18471 Views

Last post by SplatWack1
2008-09-11 21:18
Limiting access

Last post by lamaslany « 2008-07-30 14:01
Replies: 1
by coffeeguy » 2008-07-16 12:47

1 Replies

11910 Views

Last post by lamaslany
2008-07-30 14:01
Invalid attempt (not authenticated)

Last post by Bihler « 2008-06-10 18:55
Replies: 1
by Bihler » 2008-06-10 17:20

1 Replies

16054 Views

Last post by Bihler
2008-06-10 18:55
is-nt6ua.tmp trying to connect outside firewall

Last post by pgmoney « 2008-06-04 12:37
Replies: 4
by dimon00 » 2004-09-17 07:36

4 Replies

16883 Views

Last post by pgmoney
2008-06-04 12:37
AuthHosts and logged out user

Last post by sbostedor « 2008-06-04 12:01
Replies: 1
by sstringham » 2008-06-03 23:52

1 Replies

11345 Views

Last post by sbostedor
2008-06-04 12:01
MS Login problem Vista SP1

Last post by redge « 2008-05-18 14:22
Replies: 1
by ken734 » 2008-05-18 14:11

1 Replies

11234 Views

Last post by redge
2008-05-18 14:22
Does UltraVNC work on a XP Home machine

Last post by TheFatherMind « 2008-05-11 09:53
Replies: 7
by RiaVanHeerden » 2006-10-23 08:00

7 Replies

27303 Views

Last post by TheFatherMind
2008-05-11 09:53
AD Domain User accounts with pc's not running on domain

Last post by FEAIT « 2008-05-09 06:42

by FEAIT » 2008-05-09 06:42

0 Replies

8157 Views

Last post by FEAIT
2008-05-09 06:42
Unknown usernmame or bad password when checking groups

Last post by dominikd « 2008-04-28 09:27
Replies: 1
by dominikd » 2008-04-28 09:19

1 Replies

13542 Views

Last post by dominikd
2008-04-28 09:27
Problems over LAN

Last post by philmangan « 2008-04-23 12:39

by philmangan » 2008-04-23 12:39

0 Replies

7561 Views

Last post by philmangan
2008-04-23 12:39
config for Domain users

Last post by simonwiles « 2008-04-05 15:04

by simonwiles » 2008-04-05 15:04

0 Replies

8511 Views

Last post by simonwiles
2008-04-05 15:04
MS Logon Password Encryption

Last post by ferrati « 2008-03-28 08:39

by ferrati » 2008-03-28 08:39

0 Replies

8242 Views

Last post by ferrati
2008-03-28 08:39
Problem building .msi installer to deploy over GP

Last post by sgiovanni « 2008-03-27 01:47
Replies: 4
by sgiovanni » 2008-01-18 03:51

4 Replies

18920 Views

Last post by sgiovanni
2008-03-27 01:47
RFE: MS Logon II without password set

Last post by X3 « 2008-02-26 11:20
Replies: 1
by NoFastidies » 2008-02-26 10:48

1 Replies

13132 Views

Last post by X3
2008-02-26 11:20
Question about authorization

Last post by darcx3 « 2008-02-22 19:04

by darcx3 » 2008-02-22 19:04

0 Replies

8486 Views

Last post by darcx3
2008-02-22 19:04
MS Logon not working when viewed from other VNC programs

Last post by PeteBoyd « 2008-02-19 15:43

by PeteBoyd » 2008-02-19 15:43

0 Replies

12897 Views

Last post by PeteBoyd
2008-02-19 15:43
Strange behaviour of the server during the connexion

Last post by Titus Oates « 2008-02-18 12:16

by Titus Oates » 2008-02-18 12:16

0 Replies

9171 Views

Last post by Titus Oates
2008-02-18 12:16
Problems with Disconnect from client

Last post by redge « 2008-02-11 17:20
Replies: 1
by fire.spray » 2008-02-11 10:44

1 Replies

9849 Views

Last post by redge
2008-02-11 17:20
Relogin after reboot

Last post by redge « 2008-02-04 19:44
Replies: 1
by dangerdave » 2008-02-04 17:14

1 Replies

10892 Views

Last post by redge
2008-02-04 19:44

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