Windows 7 Win 7 Pro x64 in Virtual PC in Win 7 Ult x64?

[MacNala]

Has anyone been able to install Windows 7 Professional 64-bit version in a Virtual PC machine running in a Windows 7 Ultimate 64-bit.
I keep getting an error which says there is an incompatibility.
I have attached a screen dump of the error.

 

[MacNala]

Please ignore this post of mine.
I have found the answer elsewhere
VirtualPC does not support 64-bit guests!

I need
Hyper-V
VmWare
or
VirtualBox.

So I am off to evaluate these.