ADD Mount (UnMount) VHD to SendTo Menu

open up an Explorer window, and then paste in the following to the address bar.
%APPDATA%\Microsoft\Windows\SendTo

Past in the following batch files

MountVHD.BAT

@ECHO OFF
SETLOCAL
SET DiskPartScript="%TEMP%DiskpartScript.txt"
ECHO SELECT VDISK FILE="%~1" > %DiskPartScript%
ECHO ATTACH VDISK >> %DiskPartScript%
DiskPart /s %DiskPartScript%
ENDLOCAL

UnmountVHD.Bat

@ECHO OFF
SETLOCAL
SET DiskPartScript="%TEMP%DiskpartScript.txt"
ECHO SELECT VDISK FILE="%~1" > %DiskPartScript%
ECHO DETACH VDISK >> %DiskPartScript%
DiskPart /s %DiskPartScript%
ENDLOCAL