Windows 7 has many new features out of which one feature is Windows XP Mode which lets you to run Windows XP on your Windows 7 however in order to use Windows XP mode you must have Windows 7 Professional or Ultimate and your computer must have hardware level virtualization support. Due to above requirements many user won't be able to enjoy Windows XP Mode. Here is VMLite alterative to Windows XP Mode.

VMLite XP Mode offers similar functions as Microsoft XP Mode, but doesn't require hardware virtualization. It allows you to run Windows XP at the same time from your desktop running on a different host operating system.