Possible to force-quit Guest-session through remote desktop?

[thisismyforumaccount]

I have a Windows XP guest session running on a remote machine that I can access through Remote Desktop. That machine has frozen during shutdown, and I am unable to physically walk to the VirtualBox session and shut it down. Is there any command I can send through the Remote Desktop session to request a force-quit of the guest machine?

[Sasquatch]

Which Remote Desktop are you talking about? Window's native one that you use to control the Host, or VBs VRDP feature? The latter, no idea, probably not. The prior, just use taskmanager to kill the process.

[thisismyforumaccount]

Ok, that's what I figured. This is through VB's VRDP feature. I haven't allowed a remote connection to the host, though in hindsight that would have been a useful idea.