korporatnym debilom daj precitat http://technet.microsoft.com/en-us/library/gg69969 3.aspx
Licenciu potrebujes ak pouzijes nejaky iny vseobecny virtual machine, a nadrbes si tam sam XP tak to je akokeby instalacia XP na "dalsi pocitac"Licensing Considerations
There are no special licensing requirements for using Windows XP Mode; it is free if you have Windows 7 Premium, Windows 7 Enterprise, or Windows 7 Ultimate. For more information, see Install and use Windows XP Mode in Windows 7.