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

SCIII moved from Alpha to Beta

SC <-> Proxy <-> Repeater <-> Proxy <-> Viewer
redge
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Post by redge »

closed port 443 5500 and 5900 on NAT router and enabled windows firewall and active "don't allow exceptions",
it works for viewer and scIII

I'm very very impressed about your SCIII, so big great work :D
very happy to see your sotfware work more friendly end user after every new build.

report:
when 2 computers starting ScIII_test3 with same ID
1 viewer using same ID for trying to support 2 computers at same time
only 1 accepted, normal ?
2nd session nothing... no prompt for accept or refuse 2nd session from 2nd computers started scIII_test3 ?
limitation or under development or bug ?
UltraVNC 1.0.9.6.1 (built 20110518)
Windows OS: XP Home + Vista Business + 7 Home
Only experienced user, not developer
redge
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Post by redge »

sc updated , also can use driver
viewer updated, cancel issue
...
Modified the auto settings, color switching crash zrle encoder.
(256 colors fixed, unless you set them manual)
very goooooood :-)

well, for better user friendly
if only user pushed "Cancel", then re-open vncviewer.
otherwise, show classic error message: Connection failed - ....
Last edited by redge on 2005-06-26 02:12, edited 1 time in total.
UltraVNC 1.0.9.6.1 (built 20110518)
Windows OS: XP Home + Vista Business + 7 Home
Only experienced user, not developer
RudiDeVos
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Post by RudiDeVos »

viewer:
On the viewer site is the software specialist....
We may expect some some PC knowledge on that site.


Repeater
The only remaining prob is that the SSLrepeater is not stable enough..
I'm trying to find what makes it non functional, possible some 443 portscanners
or standard web access to the repeater.
Still some work on that site, but debug is hard. It does not crash but only
does not longer work.
RudiDeVos
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Post by RudiDeVos »

new repeater running
Feel free to crash it.

Fixed: non ssl connection blocked listening thread
added: time +traffic logging per ID

-try with webbrowser
-non ssl server/viewer (standard SC)
-ssl server/viewer (http://sc.uvnc.com/SCIII)
Repeater should be able to handle SSL and non SSL connections
(non SSL 5500 and 5901)(SSL 443)
-portscanner (please only use 443)

logging info
ID 9876 2005/6/26 6:46:34 2005/6/26 6:46:55 recv: 74k send: 1k tot: 76k
redge
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Post by redge »

I can crash the new vncviewer_crash_fix.exe

how to:

1st vncviewer_crash_fix connected to client SCIII_test4, OK

Then start 2nd vncviewer_crash_fix from same computer ...
open 2nd session even with an different ID,
vncviewer fail and show "runtime error, abnormal termination"


1st vncviewer_crash_fix session stay alive and continue work as normal :-)
Last edited by redge on 2005-06-26 17:27, edited 1 time in total.
UltraVNC 1.0.9.6.1 (built 20110518)
Windows OS: XP Home + Vista Business + 7 Home
Only experienced user, not developer
RudiDeVos
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Post by RudiDeVos »

Sorry, multiple viewers are not possible.

Internal ports(59000) use a listener, you can only have 1 listener
on the same port. Dynamic internal ports make the viewer differ to much
from the standard....perhaps later.

The viewer try to port between a try catch, and generates a runtime error
if port is already in use. I could replace the " runtime error" by a message box, but i want to have the errors in the bug build.

You can NOT make multiple viewer connections simultanious.


The question was...try to crash the repeater, as it is more important
that that part keeps running at least a few days without requiring a restart.
redge
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Post by redge »

test SCIII_test4.exe successfull only 2 times with proxy https located in Belgium
212.123.26.115:80 Anonymous Unknown Belgium HTTPS CONNECT
>1min before connection live

put proxy in IE... including local computers
logoff... login

change proxy...
129.132.57.3:3128 Anonymous Switzerland

logoff ... login

let viewer quickly close without any message and SCIII_test4 wait connected...
nothing (fail)

list public proxy available here, let me know what you want I test type of proxy !
Fresh Anonymous Proxy List
http://www.digitalcybersoft.com/ProxyLi ... list.shtml

now, i think repeater is crashed because viewer and scIII closed immediately !
UltraVNC 1.0.9.6.1 (built 20110518)
Windows OS: XP Home + Vista Business + 7 Home
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RudiDeVos
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Post by RudiDeVos »

uvnc.com is hosted in the USA, not belgium. Cheaper
70$ ->50EURO
Own server, 10Mb up/down, max data volume 1T

The proxy need to be https/socks4/socks5

Repeater was gone....i was hoping that it crashed, but a proper shutdown
does not give me any clue why.

Perhaps i just put a loop around the start :)
eo
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Post by eo »

Rudi,

Awesome. What a great advancement!

Will we be able to customize the "enter" graphic? Thanks!!
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Post by RudiDeVos »

The bmp is loaded from custom file,like background...
You always can replace it.

Extract the exe...and check also the helpdesk.txt.
eo
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Post by eo »

Rudi,

Is there a place to download the latest repeater to help test?
RudiDeVos
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Post by RudiDeVos »

Placed copy in SCIII download directory
http://sc.uvnc.com/SCIII/repeaterII/
Last edited by RudiDeVos on 2005-06-28 20:52, edited 1 time in total.
redge
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Post by redge »

Any web beta SC III creator based on UVNC 1.00 or to early to publish them ?
(last available is SC20.3 based)
(so i can put my own ID preconfigured as much a simple) and bypass NAT with the power of this build and select my repeater in Switzerland distributer4 :)
UltraVNC 1.0.9.6.1 (built 20110518)
Windows OS: XP Home + Vista Business + 7 Home
Only experienced user, not developer
tomtom

Post by tomtom »

redge wrote:Any web beta SC III creator based on UVNC 1.00 or to early to publish them ?
that'd be extremly cool ... while looking forward to this, another question:
As most of the users I want to use SC to support my customers.
How can I ensure, that only MY customers can use my Repeater ?
Filtering ports / IPs at a firewall is no solution as most of my customers
use dynamic IPs ...
Rob
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Post by Rob »

Yes, SC based on 1.0 final would be nice to see... :)
Ignorance is Bliss...
eo
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Post by eo »

Rudi,

Test out entering a ID number then backspacing on it. When I backspace is doesnt rub out the characters.
RudiDeVos
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Post by RudiDeVos »

works on XP SP2
OS ?

Repeater is still unstable, seems to hang from time to time.
Current don't count on it...only use for testing
tomtom

Post by tomtom »

Rudi De Vos wrote:works on XP SP2
OS ?
Windows XP prof. SP2 / latest patches installed
See screenshot:
Image

After bringing scIII to background and front again, the problem is fixed temporarily ..
redge
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Post by redge »

On the viewer site is the software specialist....
I don't agree !
Why ?

so you can have a specialist as well but not as technical software bug,
only as application specialist like painter know very well how to create a beautiful picture or help someone to do it remotely but not understanding what happen if her remote control fail and how to explain to be understandable, so only developer can put some good hint of way of problem inside the software report (not technical word are understandable for end-user)(Or laziness of reading, lack of time of reading of lot documentation)

Understanding this point of view ?
not sure,
so, somebody can answer to me:
well done to be available professional software paid not freeware under GPL !?
UltraVNC 1.0.9.6.1 (built 20110518)
Windows OS: XP Home + Vista Business + 7 Home
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RudiDeVos
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Post by RudiDeVos »

Compare both....
SC need to be extreme easy
Viewer needs to be as easy as posible.

On the SC site the super dumy... on the viewer site the dumy.

Beter.... :D
mortenchristensen
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Post by mortenchristensen »

I have a problem with SCIII :-)

How can we give credit to Rudi and UltraVNC, if the SC-user only sees that userfriendly blue circle ?
Guest

Post by Guest »

where is the part i set the company proxy at? just normally at "internet explore" ?
redge
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Post by redge »

proxy Internet Explorer
UltraVNC 1.0.9.6.1 (built 20110518)
Windows OS: XP Home + Vista Business + 7 Home
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