You cannot run x64 OS as virtual machines on Virtual Server neither on
VirtualPC.
You'll have to use Windows Server 2008 Hyper-V, but also there your
hardware needs to be compatible with hardware virtualization.
Cheers
--
augusto alvarez | it pro | southworks
http://staff.southworks.net/aalvarez
"Cyril" <daghood@gmail.com> wrote in message
news:BC62BF06-B310-4FFC-8C0D-E8B883CA69EA@microsoft.com...
>
> My hardware is 64 bit compatible ! I now have a Windows 2003 standard
> edition 32 bits.
>
> Can I run a 64 bit virtual machine on this server or should I change the
> OS to 64 bits?
>
> Thanks a lot
>
> Dag