The one function not currently well supported in Hyper-V is the movement and copying of VM and VHD files or virtual machines without using the Export / Import functionality. While it is possible to manually move VHD files, the operation is tedious and complex.
At AIS, we have discovered the need for copying VHD files ranges from moving a large .VHD from a full hard drive to quickly supporting test bench copies from a gold disk image. After the 10 or 12 manual updates of the VHD XML file, symbolic links, and security we decided it was time for a utility.
You can download and read the documentation from this link
The Windows .MSI installer is available for download via this link