Traditionally I would have used VMWare but the UI and experience is pretty clunky. VirtualBox seems just as functional, at least for workstation style use and the interface is far easier to work with. Best of all, it's free.

"Neither can VirtualBox yet have a virtual machine span more than one physical core in a server or desktop.."

Of course it can .... whenever the Environment is fully Virtualised [and AIdDynamIQ]....... and thus does IT Render the Server and Desktop as a Remote Controlled Proxy Driver of a Virtual OS System .... and/or Networks InterNetworking RobotICQs for AIReal SMART Virtual Reality Play Stations, which are just two Options Currently available to Power Core Services and NEUKlearer HyperRadioProActivity.

If you are honest with yourself, given what is well known and universally accepted and acceptable about Teutonic Engineering Excellence [and in a landscape of Big Iron where V8 might be considered a pinnacle, the competition is Majoring and Pioneering and Excelling in V10/V12/W16] you can fully expect Virtualisation DriverWareFare to be second to None and Light Years ahead of the Norm. And it is also a DNA thing which History/Memory confirms has a Fervent Discipline well above the Norm.

Oh ... and when I went to install the VirtualBox download, this popped up ..... "The software you are installing has not passed Windows Logo testing to verify its compatibility with Windows XP.[Tell me why this testing is important]

Continuing your installation of this software may impair or destabilize the correct operation of your sysyem either immediately or in the future. Microsoft strongly recommends that you stop this installation now and contact the software vendor for software that has passed Windows Logo testing " ...... which was somewhat unXPected. Anyone else have something similar and is it best just to ignore it or give it some credence?

If you stray off running a Windows guest to anything even vaguely non mainstream (i.e. BSD Unix) - particularly on a 64 bit host, Virtualbox fails consistently. VMWare and VirtualPC are *much* better. I do hope they're improving..

That would be NT?

Posted by Not Quite The Last OS/2 User On The Planet --- 24/7/52 in fact in my office.

http://www.virtualbox.org/wiki/Downloads

That would generally be OS/2 <= v1.3 which, it should be noted, will fail to work in 99.99% of virtual machines. Whilst OS/2 v2+ uses some odd features that make it difficult for it to work in some virtual machines, OS/2 <=v1.3 is downright hostile - it needs patching to work on real modern hardware anyway (PCI? What's that?).

Technically, there was a number of disk sets of Microsoft OS/2 2.0 beta code, created some time before the Microsoft/IBM split was finalised. These disks are incredibly rare.

Still, 'Microsoft OS/2' can only reasonably be called <=v1.3. It can't be denied they contributed a fair bit of code, although arguments rage over the quality of their code to this day.

Yes, there are. And some of us mossbacks remember that Microsoft's newtorking stack was really nothing more than IBM's LanManager (still is, really). We also remember when NT was codnamed "Chicago" and was being developed as a UNIX variant, but MS figured it out that they were too far behind the market to compete in the UNIX space and abandoned the work. What they delivered was some crap hammered onto Winows and called it NT.