Windows v Linuxu jde - ale jen v plne virtualizaci, pro paravirtualizaci by musel MS provest zmeny ve svem kodu. O patenty nejde. Proste by musel pridat kod, ktery misto s HW mluvi s hypervisorem.
A dokonce to snad bude podporovane: http://news.com.com/Novell+offers+faster+virtualized+Windows/2100-1012_3-6158196.html
In addition, Novell plans to announce that through its patent and technology partnership with Microsoft, rival Microsoft will provide joint technical support for customers running Windows Server 2003 R3 atop a platform of Xen from SLES.
Nevim proc bych z tohohle mel byt odvazany... SLES pouzivat nebudu, a jestli Novelli rozsireni, se kterymi jedine bude M$ kod spolupracovat nebudou nakonec closed-source/proprietary - na to si pockam.
During the development of Xen 1.x, Microsoft Research, along with the University of Cambridge Operating System group, developed a port of Windows XP to Xen. This was possible due to Microsoft's Academic Licensing Program. The terms of this license do not allow this port to be published, although the experience is documented in the original Xen SOSP paper.