Hello. Rudi, thanks for all your help in making this. A couple more questions for someone. I would like the ctl-alt-del to function so I can utilize some features... can this happen or is in not built into this oneclick. Also, is there a way that the tech gets a pop up asking to accept the connection? Maybe if I use a key it would not just pop into the screen.. that brings me to the key question... Do I just type something in the text for thr rc4.key file, give some examples please. Another question... can this be set to run as a service??
Thanks for the help.
Mike
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
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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
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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
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- Reddit community: https://www.reddit.com/r/ultravnc
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ctl-alt-del, rc4.key and logon question
- Rudi De Vos
- Admin & Developer

- Posts: 6978
- Joined: 2004-04-23 10:21
- Contact:
1) CAD only works when vnc runs as service.
+For security reasons, the service handling has been DISABLED.
The only way to get access is when the user dbl click.
+Installing a service require admin priveledge, and as service, vnc run as system account. Most company's would never allow this to be done by an external helpdesk.
rc4.key: Encryption key.
This is the key you can generate after installing the dsmplugin.
Install the dsm in the directory of your server or viewer, and click config plugin, you can create a key from there.
Remember, once they key is imported in SC, you can only connect when the viewer has the same key set, encryption.
+For security reasons, the service handling has been DISABLED.
The only way to get access is when the user dbl click.
+Installing a service require admin priveledge, and as service, vnc run as system account. Most company's would never allow this to be done by an external helpdesk.
rc4.key: Encryption key.
This is the key you can generate after installing the dsmplugin.
Install the dsm in the directory of your server or viewer, and click config plugin, you can create a key from there.
Remember, once they key is imported in SC, you can only connect when the viewer has the same key set, encryption.
