root@notebuntu:/home/andy80# VBoxManage setextradata "Debian 4.0" "VBoxInternal/Devices/pcnet/0/LUN#0/Config/ssh/UDP" 0
VirtualBox Command Line Management Interface Version 1.3.8
(C) 2005-2007 InnoTek Systemberatung GmbH
All rights reserved.

[!] FAILED calling virtualBox->FindMachine(Bstr(argv[0]), machine.asOutParam()) at line 4956!
[!] Primary RC  = 0x80070057
[!] Full error info present: true , basic error info present: true 
[!] Result Code = 0x80070057
[!] Text        = Could not find a registered machine named 'Debian 4.0'
[!] Component   = VirtualBox, Interface: IVirtualBox, {e1d95593-f579-4f47-b489-0b67181014e1}
[!] Callee      = IVirtualBox, {e1d95593-f579-4f47-b489-0b67181014e1}