That are old links from a few years back.
https://uvnc.com/downloads/ultravnc-sc/ ... nc-sc.html
Celebrating the 22th anniversary of the UltraVNC: https://forum.uvnc.com/viewtopic.php?t=38031
Update: UltraVNC 1.4.3.6 and UltraVNC SC 1.4.3.6: https://forum.uvnc.com/viewtopic.php?t=37885
Important: Please update to latest version before to create a reply, a topic or an issue: https://forum.uvnc.com/viewtopic.php?t=37864
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
Update: UltraVNC 1.4.3.6 and UltraVNC SC 1.4.3.6: https://forum.uvnc.com/viewtopic.php?t=37885
Important: Please update to latest version before to create a reply, a topic or an issue: https://forum.uvnc.com/viewtopic.php?t=37864
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 6672 matches
- 2025-02-06 19:13
- Forum: 1.4.3.x Releases
- Topic: UltraVNC 1.4.3.6 - Feedbacks
- Replies: 43
- Views: 276399
- 2025-02-04 20:56
- Forum: 1.5.x
- Topic: UltraVNC 1.5.0.4-dev - Feedbacks
- Replies: 23
- Views: 76514
Re: UltraVNC 1.5.0.4-dev - Feedbacks
updated
When commandlines are used viewer doesn't load the option file.
When commandlines are used viewer doesn't load the option file.
- 2025-02-02 19:21
- Forum: 1.4.3.x Releases
- Topic: Very slow UltraVNC when network adapters are combined with a virtual bridge
- Replies: 1
- Views: 13530
Re: Very slow UltraVNC when network adapters are combined with a virtual bridge
There are many posts on the net that sometimes virtual bridges are slow for tcp .
I'm not a bridge specialist but it seems to happen when there are routing issue's.
Google "virtual bridge microsoft slow"
Perhaps you understand the answers better
I'm not a bridge specialist but it seems to happen when there are routing issue's.
Google "virtual bridge microsoft slow"
Perhaps you understand the answers better
- 2025-02-01 17:08
- Forum: 1.5.x
- Topic: UltraVNC 1.5.0.4-dev - Feedbacks
- Replies: 23
- Views: 76514
Re: UltraVNC 1.5.0.4-dev - Feedbacks
ok, will check this.
- 2025-01-31 19:40
- Forum: General help
- Topic: Filetransfer funktioniert nicht
- Replies: 1
- Views: 16788
Re: Filetransfer funktioniert nicht
[admin] FileTransferEnabled = 1 is still the same in the latest 1.5.0.4 It also require InputsEnabled=1 A user must be logged on in The viewer need to be UltraVNC and best is to use the same version as the server to be sure they speak the same protocol. The server need to answer the viewer he is ...
- 2025-01-30 20:14
- Forum: 1.4.3.x Releases
- Topic: Black screen on Windows 2019 Server
- Replies: 2
- Views: 5362
Re: Black screen on Windows 2019 Server
The virtual monitor driver fix this and it should also be working on other versions then 10/11.
Server 2019 need to be at least 1903
Server 2019 need to be at least 1903
- 2025-01-30 20:09
- Forum: General help
- Topic: View-only mode and encryption
- Replies: 2
- Views: 5890
Re: View-only mode and encryption
1.5.0.4: viewonly vnc password and encryption working
- 2025-01-27 13:41
- Forum: 1.5.x
- Topic: UltraVNC 1.5.0.4-dev - Feedbacks
- Replies: 23
- Views: 76514
Re: UltraVNC 1.5.0.4-dev - Feedbacks
I don't think the cpu of the viewer can have any influence. You can connect using unix/mac/ and all implementations are different.
It looks more like a network issue.
On of the dev pc is a 128core (amd hyperthread) and as viewer i use a i7, this works without an issue. ( LAN connection)
It looks more like a network issue.
On of the dev pc is a 128core (amd hyperthread) and as viewer i use a i7, this works without an issue. ( LAN connection)
- 2024-12-23 20:31
- Forum: 1.5.x
- Topic: UltraVNC 1.5.0.4-dev - Feedbacks
- Replies: 23
- Views: 76514
Re: UltraVNC 1.5.0.4-dev - Feedbacks
service will be changed like this
%programdata%\UltraVNC\ultravnc.ini
but when you install it with another name sample: "myvnc_service"
%programdata%\UltraVNC\myvnc_service.ini
is used
When not found it fallback to current folder
This should do the trick for multiple installed services
%programdata%\UltraVNC\ultravnc.ini
but when you install it with another name sample: "myvnc_service"
%programdata%\UltraVNC\myvnc_service.ini
is used
When not found it fallback to current folder
This should do the trick for multiple installed services
- 2024-12-22 15:54
- Forum: 1.5.x
- Topic: UltraVNC 1.5.0.4-dev - Feedbacks
- Replies: 23
- Views: 76514
Re: UltraVNC 1.5.0.4-dev - Feedbacks
There are 2 different cases: Multiple apps This can be solved using winvnc.exe -config filename ( filename need to entered c:\xxx\yyy\abc.ini) Multiple service In this case we could use the "special_service_name" without the need to add extra parameters, a service is unique %programdata%UltraVNC ...
- 2024-12-22 14:34
- Forum: 1.5.x
- Topic: UltraVNC 1.5.0.4-dev - Feedbacks
- Replies: 23
- Views: 76514
Re: UltraVNC 1.5.0.4-dev - Feedbacks
Mutiple services registerd: Is this how the multple instances are used, not manual starting several servers with the -multi option?
- 2024-12-22 13:24
- Forum: 1.5.x
- Topic: UltraVNC 1.5.0.4-dev - Feedbacks
- Replies: 23
- Views: 76514
Re: UltraVNC 1.5.0.4-dev - Feedbacks
uvnc_settings.exe still require an update it need to become the same as the current tabbed settings from the systray. For the query settings you have a test button (systray settings) you can enter an ip or hostname and check what the result would be with the added rules see previous screenshot Check ...
- 2024-12-21 19:18
- Forum: 1.5.x
- Topic: UltraVNC 1.5.0.4-dev - Feedbacks
- Replies: 23
- Views: 76514
Re: UltraVNC 1.5.0.4-dev - Feedbacks
Found, the default action was not set, updated so in case no rule is set Query is added
Files updated

Files updated

- 2024-12-21 10:23
- Forum: 1.5.x
- Topic: UltraVNC 1.5.0.4-dev - Feedbacks
- Replies: 23
- Views: 76514
UltraVNC 1.5.0.4-dev - Feedbacks
Thanks for the feedback, the installer popups are temporal to now what the installer does in the background.
Will be removed in final release.
I will check the
QuerySetting QueryTimeout QueryAccept QueryIfNoLogon
parameters
Will be removed in final release.
I will check the
QuerySetting QueryTimeout QueryAccept QueryIfNoLogon
parameters
- 2024-12-20 21:28
- Forum: 1.5.x
- Topic: UltraVNC 1.5.0.4-dev - Feedbacks
- Replies: 23
- Views: 76514
UltraVNC 1.5.0.4-dev - Feedbacks
Feedbacks for UltraVNC 1.5.0.4-dev in this topic. UltraVNC 1.5.0.4-dev: - https://uvnc.eu/download/1504/UltraVNC_1504-dev.zip - https://uvnc.eu/download/1504/UltraVNC_1504_x64_Setup.exe - https://uvnc.eu/download/1504/UltraVNC_1504_x64_Setup.exe UltraVNC 1.5.0.4-dev - December 2024: - UI update ...
- 2024-12-20 21:00
- Forum: 1.5.x
- Topic: UltraVNC 1.5.0.1-dev/1.5.0.2-dev/1.5.0.3-dev - Feedbacks
- Replies: 12
- Views: 75446
Re: UltraVNC 1.5.0.1-dev/1.5.0.2-dev/1.5.0.3-dev - Feedbacks
should be fix now, box was to small ( upcoming 1.5.0.4)
- 2024-12-20 20:59
- Forum: Developer discussions (mainly user-mode)
- Topic: Questions about latest version
- Replies: 3
- Views: 3387
Re: Questions about latest version
should be fix now
- 2024-12-20 20:59
- Forum: General help
- Topic: Ultra VNC 1.4.3.1 + PAL
- Replies: 3
- Views: 3771
Re: Ultra VNC 1.4.3.1 + PAL
Is vnc running as application or service ?
Tested as app and service and get the logon (omron)
Tested as app and service and get the logon (omron)
- 2024-12-20 17:02
- Forum: General help
- Topic: Change length and format of ID
- Replies: 1
- Views: 2390
Re: Change length and format of ID
Not possible the ID is a number of max 9 digits.
- 2024-12-16 19:28
- Forum: Developer discussions (mainly user-mode)
- Topic: Questions about latest version
- Replies: 3
- Views: 3387
Re: Questions about latest version
Thanks... a lot of changes and a lot still to verify
- 2024-12-01 19:12
- Forum: General help
- Topic: UltraVNC deplyoment via GPO with enabled SecurePlugin
- Replies: 1
- Views: 3440
Re: UltraVNC deplyoment via GPO with enabled SecurePlugin
ultravnc.ini is portable Accss using user/password use access to a reg key. You can extract and set this wit the include mslogonacl.exe Usage: mslogonacl /e <file> for exporting an ACL to an (optional) file. mslogonacl /i <mode> <file> for importing an ACL where mode is either /o for override or /a ...
- 2024-12-01 19:08
- Forum: Feature requests
- Topic: UltraVNC Red Box outline Dissapearing
- Replies: 2
- Views: 5099
Re: UltraVNC Red Box outline Dissapearing
I put it on the todo list
- 2024-11-26 20:35
- Forum: 1.4.3.x Releases
- Topic: UltraVNC 1.4.3.6 - Feedbacks
- Replies: 43
- Views: 276399
Re: UltraVNC 1.4.3.6 - Feedbacks
SC version used ? Each time the Viewer sees a connection attempt from non uvnc-servers: Non vnc servers are fileterd out at least he need to announce himself as a vnc server. Verify with cmd telnet yourvncip 5500 This make a connection to the vncviewer in listening mode and should not open a popup ...
- 2024-11-25 19:44
- Forum: Developer discussions (mainly user-mode)
- Topic: Debug Assertion Failed
- Replies: 1
- Views: 4122
Re: Debug Assertion Failed
Some secure functions like strcpy_s give this error when the destination is to small Can you debug and see where in the code this error come from. The recent version is still work in progress, a lot of things changed... if you find errors like this please try to find the origin using the "Press ...
- 2024-11-14 21:16
- Forum: DSM plugin
- Topic: source SecureVNCPlugin.dsm
- Replies: 8
- Views: 118470
Re: source SecureVNCPlugin.dsm
I actual need the name you are using on git, to add you to the accesslist you can pm it or send me a mail
- 2024-10-16 21:12
- Forum: MS logon plugin
- Topic: MSLogon II and Local Users/Group rejected
- Replies: 1
- Views: 7763
Re: MSLogon II and Local Users/Group rejected
Old info but it could still be the case in newer OS's ForceGuest registry value is set to 1 by default in the following registry key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa If the Guest account is enabled, an SSPI logon will succeed as Guest for any user credentials. If ForceGuest ...
- 2024-10-06 17:51
- Forum: SC
- Topic: SC 2.0 sc_20.ini and Wallpaper
- Replies: 3
- Views: 18062
Re: SC 2.0 sc_20.ini and Wallpaper
Looks like small changes...
What would be the best behaviour?
What would be the best behaviour?
- 2024-09-24 19:27
- Forum: DSM plugin
- Topic: No login with Encryption
- Replies: 3
- Views: 8313
Re: No login with Encryption
When encryption is active the pasword is used to create an encryption key.
The encryption is secure, even with a 8 char passwd but using brute force 8 char passwords are easy broken as the combination is limited.
That's ok for internal use, but on a open server should set a phassphraze
The encryption is secure, even with a 8 char passwd but using brute force 8 char passwords are easy broken as the combination is limited.
That's ok for internal use, but on a open server should set a phassphraze
- 2024-09-21 07:43
- Forum: DSM plugin
- Topic: No login with Encryption
- Replies: 3
- Views: 8313
Re: No login with Encryption
Please do it step by step. remove the ultravnc.ini on the server site to set back to default remove the keys on both site Start the server, this create a new ultravnc.ini and set a new 8 char vnc password 1) Connect plain, no enceryption 2) select use plugin on both sites, no key, just the plugin ...
- 2024-09-21 07:27
- Forum: 1.4.3.x Releases
- Topic: Does 1.4.3.6 work with the MSRC4Plugin.dsm?
- Replies: 1
- Views: 6554
Re: Does 1.4.3.6 work with the MSRC4Plugin.dsm?
SecureVNCPlugin64 ->64bit
MSRC4Plugin ->32bit, old plugin what was still distributed for the old SC versions, for 32bit viewer only
Running a 32bit dll (dsm) with a 64bit exe give "please check..)
MSRC4Plugin ->32bit, old plugin what was still distributed for the old SC versions, for 32bit viewer only
Running a 32bit dll (dsm) with a 64bit exe give "please check..)