MS-Logon Plugin

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

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

2026-03-11: CVE-2026-3787 and CVE-2026-4962 - Clarification: https://forum.uvnc.com/viewtopic.php?t=38155

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

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

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Announcements

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Views

Last post

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

601494 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

341941 Views

Last post by Ludovic
2025-12-03 20:20
UltraVNC 1.6.4.0 and UltraVNC SC 1.6.4.0 Released

Last post by Ludovic « 2025-06-25 16:38
Posted in Announcements

by Ludovic » 2025-06-25 16:38 » in Announcements

0 Replies

1378000 Views

Last post by Ludovic
2025-06-25 16:38
UltraVNC 1.6.4.0 and UltraVNC SC 1.6.4.0 - Feedback

Last post by Ludovic « 2026-04-08 10:25
Posted in 1.6.x
Replies: 26
by RudiDeVos » 2025-06-22 21:06 » in 1.6.x

26 Replies

2738698 Views

Last post by Ludovic
2026-04-08 10:25
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

1099817 Views

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

Topics

Replies

Views

Last post

MS-Login II Strange Behavior

Last post by bevtech « 2005-12-27 15:46
Replies: 3
by Peas » 2005-12-22 16:09

3 Replies

12399 Views

Last post by bevtech
2005-12-27 15:46
MSLogon II with no Classic

Last post by Marscha « 2005-12-22 09:19
Replies: 3
by maddhaze » 2005-12-20 19:56

3 Replies

12941 Views

Last post by Marscha
2005-12-22 09:19
Connecting to XP box with ms-logon feature from a Linux box

Last post by whitetornado « 2005-12-12 15:20
Replies: 2
by whitetornado » 2005-12-11 17:11

2 Replies

10940 Views

Last post by whitetornado
2005-12-12 15:20
MICROSOFT_AUTHENTICATION_PACKAGE_V1_0

Last post by Marscha « 2005-12-12 07:16
Replies: 1
by mwoods » 2005-12-09 20:19

1 Replies

18515 Views

Last post by Marscha
2005-12-12 07:16
vnc service is not runnig when one user is logged on

Last post by redge « 2005-12-10 03:47
Replies: 2
by bock » 2005-12-07 18:11

2 Replies

11382 Views

Last post by redge
2005-12-10 03:47
MS-Logon I authentication failure WinXp to Win98se

Last post by Marscha « 2005-12-06 08:25
Replies: 2
by Guest » 2005-12-05 17:31

2 Replies

12226 Views

Last post by Marscha
2005-12-06 08:25
Setting log-in

Last post by bevtech « 2005-12-06 02:10
Replies: 1
by New2VNC » 2005-12-05 17:41

1 Replies

9218 Views

Last post by bevtech
2005-12-06 02:10
Pleace help

Last post by bevtech « 2005-11-30 04:07
Replies: 1
by hepo » 2005-11-29 14:31

1 Replies

9025 Views

Last post by bevtech
2005-11-30 04:07
[FR]UltraVNC et CTRL_ALT_DEL (WinXP SP2)

Last post by redge « 2005-11-28 22:00
Replies: 1
by Le passant » 2005-11-28 12:30

1 Replies

9365 Views

Last post by redge
2005-11-28 22:00
MS II Logon problem adding new users

Last post by mboucher « 2005-11-28 15:02
Replies: 2
by mboucher » 2005-11-23 21:20

2 Replies

11061 Views

Last post by mboucher
2005-11-28 15:02
[Ms Logon II] Domain users cannot logon

Last post by alex_82 « 2005-11-08 07:41
Replies: 2
by alex_82 » 2005-11-07 09:38

2 Replies

12325 Views

Last post by alex_82
2005-11-08 07:41
MS Logon II - How does it work?

Last post by Marscha « 2005-11-07 07:58
Replies: 2
by LordHogFred » 2005-11-02 17:51

2 Replies

15502 Views

Last post by Marscha
2005-11-07 07:58
Workgroups and Domains

Last post by Marscha « 2005-11-07 07:53
Replies: 3
by Alagazam » 2005-08-05 13:53

3 Replies

14354 Views

Last post by Marscha
2005-11-07 07:53
[FR] Connexion avec utilisateur de la session courante !

Last post by redge « 2005-10-30 17:10
Replies: 1
by gowap » 2005-07-21 07:03

1 Replies

9961 Views

Last post by redge
2005-10-30 17:10
MSLOGON locking out user account, FYI

Last post by Guest « 2005-10-28 19:50
Replies: 2
by garyamort » 2005-10-05 14:15

2 Replies

12528 Views

Last post by Guest
2005-10-28 19:50
Logon to Windows desktop

Last post by Marscha « 2005-10-27 06:52
Replies: 1
by Nagarajan » 2005-10-26 06:25

1 Replies

9727 Views

Last post by Marscha
2005-10-27 06:52
After accepting password (MS LOgOn) UltraVNC closes

Last post by Andrejko- « 2005-10-25 22:26
Replies: 5
by Andrejko- » 2005-10-24 21:44

5 Replies

17816 Views

Last post by Andrejko-
2005-10-25 22:26
Add Group to MS Login 1 script

Last post by Marscha « 2005-10-21 06:27
Replies: 1
by mxracer » 2005-10-21 06:03

1 Replies

10382 Views

Last post by Marscha
2005-10-21 06:27
auth.dll

Last post by Marscha « 2005-10-18 06:05
Replies: 1
by asus61 » 2005-10-17 08:57

1 Replies

9778 Views

Last post by Marscha
2005-10-18 06:05
through authorization with MS Domain Login

Last post by Claymon « 2005-10-07 14:19
Replies: 1
by halpro » 2005-10-07 11:47

1 Replies

9558 Views

Last post by Claymon
2005-10-07 14:19
MSlogin LAN vs WAN

Last post by redge « 2005-09-30 17:26
Replies: 1
by Kriehl » 2005-09-30 16:41

1 Replies

10263 Views

Last post by redge
2005-09-30 17:26
Cannot log into vncserver after vncserver machine reboots

Last post by 2manyhats « 2005-09-28 22:12
Replies: 4
by 2manyhats » 2005-09-27 21:01

4 Replies

15447 Views

Last post by 2manyhats
2005-09-28 22:12
windows 2003

Last post by Marscha « 2005-09-27 06:15
Replies: 2
by babakhaan » 2005-09-26 18:39

2 Replies

11857 Views

Last post by Marscha
2005-09-27 06:15
no window when logged into WinXP sp2

Last post by daves0 « 2005-09-22 18:32
Replies: 2
by daves0 » 2005-09-22 15:58

2 Replies

10689 Views

Last post by daves0
2005-09-22 18:32
Problem with Novell Client 4.91 and MS Logon II

Last post by nerdytexan « 2005-09-15 20:50
Replies: 5
by hofmaniac » 2005-09-07 13:03

5 Replies

18318 Views

Last post by nerdytexan
2005-09-15 20:50
Logon Error

Last post by MMTeam « 2005-09-14 13:57
Replies: 2
by MMTeam » 2005-09-14 13:21

2 Replies

11178 Views

Last post by MMTeam
2005-09-14 13:57
Build is failed

Last post by Marscha « 2005-09-01 07:20
Replies: 1
by VNCfan » 2005-08-31 09:25

1 Replies

9276 Views

Last post by Marscha
2005-09-01 07:20
Only a local Administrator can connect?

Last post by Marscha « 2005-08-29 08:46
Replies: 1
by Squebel » 2005-08-26 20:29

1 Replies

9168 Views

Last post by Marscha
2005-08-29 08:46
Problem not asking the user to allow connection using NTLM

Last post by Guest « 2005-08-28 21:07
Replies: 3
by BullGates » 2005-07-26 18:38

3 Replies

13333 Views

Last post by Guest
2005-08-28 21:07
Does UltraVNC use "VNC Password" if MS Logon is enabled?

Last post by redge « 2005-08-27 21:48
Replies: 1
by Mun » 2005-08-27 14:16

1 Replies

9456 Views

Last post by redge
2005-08-27 21:48
Automating logons with Microsoft authentication

Last post by randallc « 2005-08-24 22:05
Replies: 8
by SUSANVV » 2005-08-19 13:55

8 Replies

25041 Views

Last post by randallc
2005-08-24 22:05
MS-LOGIN (or II) help please!!!

Last post by redge « 2005-08-19 01:37
Replies: 1
by foxy » 2005-08-18 21:16

1 Replies

11147 Views

Last post by redge
2005-08-19 01:37
Cant authenticate

Last post by gregk « 2005-08-15 19:09
Replies: 4
by gregk » 2005-08-15 13:29

4 Replies

15411 Views

Last post by gregk
2005-08-15 19:09
alternate and safer method for disabling forceguest

Last post by redge « 2005-08-10 22:09
Replies: 1
by sgt-d » 2005-04-08 19:56

1 Replies

12175 Views

Last post by redge
2005-08-10 22:09
MSLogonACL.exe language issues

Last post by Marscha « 2005-08-10 12:21
Replies: 4
by sbostedor » 2005-08-03 15:17

4 Replies

17057 Views

Last post by Marscha
2005-08-10 12:21
Cannot login

Last post by mlcporter « 2005-08-08 22:58
Replies: 3
by mlcporter » 2005-08-06 05:44

3 Replies

17561 Views

Last post by mlcporter
2005-08-08 22:58
Passwords

Last post by redge « 2005-08-07 05:36
Replies: 3
by anonymous11 » 2005-07-26 21:30

3 Replies

12800 Views

Last post by redge
2005-08-07 05:36
Save MS Logon info in .vnc file

Last post by sbostedor « 2005-08-04 12:28
Replies: 5
by peskypescado » 2005-07-31 16:33

5 Replies

30093 Views

Last post by sbostedor
2005-08-04 12:28
trouble Logon on another WS

Last post by Marscha « 2005-08-04 05:45
Replies: 1
by #AL3# » 2005-08-03 11:49

1 Replies

8693 Views

Last post by Marscha
2005-08-04 05:45
Automatic Login to the UVNC-Server

Last post by redge « 2005-08-03 18:04
Replies: 8
by Volleyknaller » 2005-03-23 11:11

8 Replies

29012 Views

Last post by redge
2005-08-03 18:04
Only accept remote access when PC connected to domain

Last post by Marscha « 2005-08-03 06:11
Replies: 9
by Guest » 2005-07-27 23:06

9 Replies

28332 Views

Last post by Marscha
2005-08-03 06:11
Win 2K>Server Win XPPro>Viewer no autologon using stored cnf

Last post by redge « 2005-07-24 00:10
Replies: 1
by JohanS » 2005-07-22 13:27

1 Replies

8186 Views

Last post by redge
2005-07-24 00:10
MS logon will not work

Last post by kickskass « 2005-07-18 23:13
Replies: 5
by kickskass » 2005-07-17 22:34

5 Replies

17855 Views

Last post by kickskass
2005-07-18 23:13
Is (or can) MSLogon information be sent encypted?

Last post by dcsanders « 2005-06-17 15:54
Replies: 4
by Guest » 2005-06-16 17:17

4 Replies

14765 Views

Last post by dcsanders
2005-06-17 15:54
MS-Logon & Other Vnc Versions

Last post by Marscha « 2005-06-06 06:12
Replies: 4
by izziokant » 2004-09-22 08:05

4 Replies

14333 Views

Last post by Marscha
2005-06-06 06:12
ms login group 3 = full access?

Last post by merv « 2005-06-03 08:31
Replies: 5
by sgt-d » 2005-04-09 16:40

5 Replies

21035 Views

Last post by merv
2005-06-03 08:31
how to use remote desktop connection?

Last post by Marscha « 2005-05-17 06:14
Replies: 2
by roudan » 2005-05-13 22:05

2 Replies

14766 Views

Last post by Marscha
2005-05-17 06:14
Weird MSLOGON authentication problem

Last post by mfo2 « 2005-05-13 10:05
Replies: 3
by mfo2 » 2005-05-13 08:05

3 Replies

17069 Views

Last post by mfo2
2005-05-13 10:05
MSLogon fallback to VNC Standard password

Last post by sbostedor « 2005-05-12 14:26
Replies: 5
by localj » 2005-04-18 06:34

5 Replies

17253 Views

Last post by sbostedor
2005-05-12 14:26
MSLogonACL for remote computers

Last post by Marscha « 2005-05-12 13:07
Replies: 5
by sbostedor » 2005-05-10 17:36

5 Replies

19819 Views

Last post by Marscha
2005-05-12 13:07

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