Re: @Bongo
>Windows 7 Professional got shipped with "Windows XP mode"
" Windows XP Mode follows the same support lifecycle as Windows XP - extended support will end April 8, 2014" Microsoft.
" it has one very interesting feature: software integration / propagation."
Yes this was an interesting concept, however, for this to work well you needed a machine capable of running VM's at a reasonable pace, also for the integration to work, it performed some 'interesting' and largely undocumented user account credential handling that tended to break when users changed their Windows 7 password. So whilst it had potential, it was worse than pointless on your typical office desktop/laptop.