I needed to retrieve a file from a VHD. With VHDMount I could mount it, get my file, and disconnect.
VHDMount is located in C:Program FilesMicrosoft Virtual ServerVhdmount
Mount file d:virtual_drive.vhd as drive letter z: vhdmount /m "d:virtual_drive.vhd" z
Unmount all mounted drives, dicarding any changes: vhdmount /u /d All