Utilize the VHD technology and setup a multi-boot Windows environment.
Portlock Leap Frog will assist you in creating a bootable Virtual Hard Disk (VHD) for native Windows deployment with your Windows XP, Windows Vista, Windows 7, and Windows Server 2003, Windows Server 2008 or Mac OS X Snow Leopard machine. The VHD can be used as the running operating system on supported hardware without a virtual machine or hypervisor. Portlock Leap Frog has been developed and designed to provide end users the ability to utilize the new VHD-boot capabilities in Windows 7 and Windows Server 2008 in one easy to use wizard.