CTRL ALT DEL does nothing Windows 7

[jweitzel]

I cannot seem to get the CTRL ALT DEL button to work on remote machines. If a user is present it works fine and I've tried many many different options and still nothing. When I click the button, it simply does nothing at all. Any thoughts or suggestions will be greatly appreciated.

[B]

It depends what version of UltraVNC, whether it's running as a service, and whether UAC is on.

See Unable to CTRL-ALT-DEL

[jweitzel]

We are using version 1.0.8.2 and UAC is turned on. I'm testing on various machines, one without any AV installed & still nothing. Used to have the error that I didn't have permission, after I uninstalled and reinstalled locally, that isnt present, but CAD does nothing. On the rest of my machines, I still receive the no permission to send the CAD

[B]

Is it running as a service? Is CAD.EXE present in the server directory? Is the logged in user an administrator? Are you getting some kind of actual error that you have "no permission to send the CAD"? (I thought you said you were getting nothing at all.)

[jweitzel]

Yes, it is running as a service, cad.exe is in the directory. I've had no response and i've had the no permissions both occur.

[B]

Then you might still need to add a registry key

Re: sc w/ -[uac/aero] and securevnc plugin

Code: Select all

reg add HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v SoftwareSASGeneration /t REG_DWORD /d 1 /f


If that doesn't help I'm out of ideas (other than upgrading to a newer version of UltraVNC).

[jweitzel]

Made the adjustment in the registry, rebooted, logged in, no permissions to send the CTRL ALT DEL

[knavegrs]

Found that enabling Remote Desktop in Windows 7 systems and Windows 2008 servers allowed UltraVNC to work without problems.
Tested with severial versions of UltraVNC that did not work (CTRL+ALT+DEL and Screen Refresh problems after initial install) or did not work consistently.
This fixed the Crtl+ALT+Del and other problems. Still researching why... Any one else find this????