Invisible Registry Keys (32 vs 64 bits Windows)

Hi,

In the 64-bit Windows registry, there are some keys which are are not
visible from REG or REGEDIT running remotely on a 32 bit system. Is there a
way to make them visible?

Specifically, I am trying to read remotely, from a Windows 2003 32 bit and
Windiws 7 32 bit machine, the key HKLM\SOFTWARE\Microsoft\Virtual
Machine\... located in the registry of a Windows 2008 64 bit machine.

I can see this key only locally or from another Win 64 bit machine.

TIA

Alex