To mount a VDH (Virtual Hard Disk) file in linux (e.g. ubuntu):
sudo apt-get install virtualbox-fuse sudo mkdir /mnt/vhd-mountpoint/ sudo vdfuse -f disk.vhd /mnt/vhd-mountpoint/ mkdir /mnt/vhd-mountpoint sudo mount -o loop /mnt/vhd-mountpoint/Part1 /mnt/part1
VDH is mostly used within Windows 7 and newer.