Some programs like ISOBuster claim that they are able to convert DSK disk images to vhd Virtual Hard Disk drives. The end result and if this really work however, could not be exactly verified.
For conversion of physical disk to vhd you can use Disk2vhd utility.Open DSK file Open VHD file
Disk2vhd is a utility that creates VHD (Virtual Hard Disk - Microsoft's Virtual Machine disk format) versions of physical disks for use in Microsoft Virtual PC or Microsoft Hyper-V virtual machines (VMs).
A highly specialized and easy to use CD, DVD and blu-ray data recovery tool