Sony Vaio Have VT Disable; No Win 7 XP Mode
Even if there's VT, there is no VT.
One of the great things about Windows 7 Professional and Ultimate is XP Mode. Windows 7 will run a virtual Windows XP so that the OS can maintain full compatibility for old applications that don't work in Vista or 7.
In order for XP Mode to run, however, the CPU must have virtualization support and the feature must also be enabled in the BIOS.
While one would think that being able support virtualization is a great feature and selling point, Sony seems to be intentionally disabling it on its Vaio computers due to security concerns. Whatever those concerns may be, other manufacturers don't appear to be worried enough to cripple their own systems.
Xavier Lauwaert, Senior Manager Product Marketing at Sony, explained in a comment on the Windows blog, "Contrary to perceived opinion, we have received very little if any requests to enable VT technology up until very recently.
"In addition, our engineers and QA people were very concerned that enabling VT would expose our systems to malicious code that could go very deep in the Operating System structure of the PC and completely disable the latter."
Lauwaert added that with the advent of XP virtualization, Sony will be reevaluating its stance on the technology and will be enabling the feature on select models.

Sounds to me like Sony's engineers and QA people don't really understand how VT works. I would think if this was that much of a threat, the OS vendors would not be supporting it. I really don't think Sony (who does nothing but assemble computer components into a working machine) really has any reason to control such a feature.
1 word to sony: Bollox
P.S.
yeaaah right! That's why all servers in the world using it !
Robbing people with their ultra expensive products that are purposely crippled.
What it takes is a simple BIOS option to enable it and that's it.
No security compromise unless the user willingly enables VT
I was thinking the exact same thing. There is a whole lot worse things to have enabled then the VT.
i think in the end.. anyone that would use this feature would have an idea of what to look for in a new laptop either way... so they would avoid the models that do not have this enabled. the rest would not know how to use it and would be confused by it. so is this really a problem in the end?
Why didn't microsoft just make VT extensions optional like they did with previous Virtual PC versions?
If there is an easy way to re-enable it, it is ok to disable by default. Even there are security issues, then it is user's choice.
Anyway, I will not buy a Sony laptop.