I cannot send a Ctrl-Alt-Delete combination to my Windows 7 computer, through VNC
Versions 4.5.3 and above, of VNC Enterprise/Personal Edition will work with Windows 7, however there is a default system policy in Windows 7 that prevents system services from sending ctrl-alt-del (Secure Attention Sequence, "SAS").There are two ways to solve this, set the group policy to allow services to simulate SAS, or by registering the VNC service with SimulateSAS=2
Either:
1.) Check that the "Disable or enable software Secure Attention Sequence" policy is set to "Services" on the VNC Server PC. (Please see related article)
Or:
2.) If you're unable to change this domain policy, you will need to register the VNC Service with a particular parameter.
You need to specify "SimulateSAS=2" on the command line when you register the VNC service.
On the VNC Server machine, go to the directory where VNC is installed, and run:
WinVNC4.exe -unregister
WinVNC4.exe -register -SimulateSAS=2
You only need to do that once, as Windows remembers the parameters the service was registered with.
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Last Updated
12th of December, 2011
