Start 'shared' Virtual Machine when Mac Boots?

Hi,

Is there anyway (even if it means writing a launchd script or something) that I can have a 'shared' Virtual Machine run up when the mac boots? i.e. Before any user has logged in?

At the moment if the Mac gets restarted, all the VM's are "down" until someone logs in locally and runs them up - I'd like some way of having them start as part of the Mac boot process, if anyone knows if that's possible?

Thanks,

-Tacks

 

Options:
a) Assuming the VM is Windows, yes, install Windows in Bootcamp. It's the only way to start Windows before any OS X user logs in.

b) Use automatic login in OSX and add Parallels VM to the login items (it's not exactly what you want), not very secure, but suppresses the need for users to key in their credentials.

c) Not saying there's absolutely no way to run Parallels before login, but would likely involve heavy modifications, and in the end the Process has to be run by some user even if it's root, which would be dangerous, so use option b) instead.