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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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VNC, Windows and UAC prompts

Posted by jpluimers on 2019/02/15

Since I needed to maintain a Windows PC behind a VPN connection via the console (so not via RDP sessions) including installation of software, I needed a (preferably free or open source) solution supporting elevation through UAC (User Account Control).

For a good description of differences between RDP and VNC, see [WayBack] remote desktop – TightVNC while an RDP session is running – Super User by [WayBackUser Canadian Luke.

Of the many non functional search results, the one suggesting running UltraVNC as a service is the one that really worked: [WayBack] If you install UltraVNC as a service, you can see the UAC notifications and press the buttons… VNC on windows 7 with administrator rights – Super User.

  1. I only needed the “Ultra VNC Server Silent” installation (see screenshot below).
  2. Be sure to set a good password though in UltraVNC settings, then restart the service in the Service page on the same tab.

Now I can use Screen Sharing on my Mac to access the machine via a VPN over the VNC protocol. Combined with a Wake On LAN feature in the remote network, this works splendid.

One thing I’ve to figured out has to do with keyboard mappings: the Mac local Command key maps to the remote Alt key (using Microsoft Remote Desktop it would map to the remote Windows key), but I’ve not figure out what maps to the remote Windows key yet.

Note this fails for [WayBackUltraVNC • View topic – UltraVNC SC – UAC Window Doesnt shown. The reason is that the Single Click version runs as an unelevated user process. So off the list [WayBackSingle Click – UltraVNC VNC OFFICIAL SITE, Remote Access, Support Software, Remote Desktop Control Free Opensource

–jeroen

PS: [WayBackmacos – Wake Other Computers from Mac OSX – Ask Different

PS2: I’m not sure about the difference between “Silent” and regular – see [WayBackUltraVNC • View topic – UltraVNC Server “Silent” – Install option

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