Doesn't MS already ship this as a "Virtual Windows XP Mode" based on VirtualPC? The huge downside is of course the lack of integration with your main OS - copy

Doesn't MS already ship this as a "Virtual Windows XP Mode" based on VirtualPC? The huge downside is of course the lack of integration with your main OS - copy&paste and drag&drop of rich/dynamic content, OLE embedding, keyboard settings, shared file systems and drive letters, printer drivers, all sorts of windows preferences, applications installing random global windows hooks, etc etc.