[vbox-dev] Vista UAC problems

Frank Mehnert Frank.Mehnert at Sun.COM
Wed Aug 12 07:13:11 GMT 2009


On Monday 03 August 2009, Huihong Luo wrote:
> On Vista or Windows 7, when UAC is on
> (1) Launch one VirtualBox as Administrator, and start a vm.
> (2) Launch another VirtualBox as normal (UAC), and try to create a vm.
> Sometimes, it will throw permission denied errors in modifying
> virtualbox.xml file. 
> The problem is that two VBoxSVC.exe processes running with different
> privilege competing for the same file, and thus causes the error. 
> Any solution for this?

I'm not sure if this is a bug or feature. As you said, two VBoxSVC
daemons are running with different privileges. Why do you need to
start a VM as administrator at all? We don't recommend that for
security reasons.

A possible solution would be to use different XML settings by
specifying the VBOX_USER_HOME variable before starting a VBox
instance, see section 9.1 of the user manual.

Kind regards,

Dr.-Ing. Frank Mehnert    Sun Microsystems, Inc.    www.sun.com
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