Anybody is using VirtualBox?

[Yuri]

I am tryingto run Windows under FreeBSD.

When I run:
cat /dev/ad1s1 | VBoxManage stdin OutPutFile.vdi 21474836480
on 80-RC2 I get this output:
ERROR: failed to create the VirtualBox object!
ERROR: code NS_ERROR_ABORT (0x80004004) - Operation aborted (extended 
info not available)
Most likely, the VirtualBox COM server is not running or failed to start.

No processes with name VirtualBox are running.

What could be the problem?
Yuri