@ECHO off
REM VHD_Mount is edited English version of chenall's VHD_MNT batch for Win7 32/64 bit.
REM It adds 2 shell commands to Registry: "Attach/Detach VHD" and
REM "Create Dif VHD". To attach or detach a VHD, doubleclick its file.
REM To Create a Dif VHD, select this command from RMC. The child VHD will be
REM created in parent's directory and assigned relative to the parent name.
REM If adding shell commands to "HKCR\.vhd\shell..." doesn't work for you,
REM since Windows Virtual PC is installed on your PC, replace in :install and :uninstall
REM sections "HKCR\.vhd\..." with "HKCR\Windows.VirtualPC.HD\..." in all commands

IF "%~n1"=="" GOTO :install
SET "diskpart=echo exit|%ComSpec% /k prompt %%dsc%%$_|diskpart"
IF %2==PARENT GOTO :PARENT

:attach
TITLE Autodetect....
SET dsc=list$Svdisk
%diskpart%|find /i "%~1" > nul && goto :detach
TITLE Attach VHD %*
SET dsc=select$Svdisk$Sfile="%~f1" $_attach$Svdisk$S%2$_
GOTO :diskpart

:detach
TITLE Detach VHD %*
SET dsc=select$Svdisk$Sfile="%~f1"$_detach$Svdisk$_
GOTO :diskpart

:PARENT
SHIFT /2
FOR /l %%i in (1,1,99) do IF not EXIST "%~dpn1_dif%%i.vhd" (set "file=%~n1_Dif%%i.vhd" & GOTO :create)
EXIT /b

:create
TITLE Create Dif VHD from Parent %1
echo.
echo. VHD_MNT will create a Differencing VHD Image File
echo. from Parent: %1
rem echo.Enter below a new Dif VHD file name, for example: %file%
rem echo. Note: don't enter full path.
echo.
rem SET /p file=Enter new Dif VHD name:
SET dsc=create$Svdisk$Sfile="%~dp1%file%"$SPARENT="%~f1"$_
TITLE Created Dif VHD %file%

:diskpart
%diskpart%
rem PAUSE
EXIT /b

:install
reg query "HKCR\.vhd\shell\Attach/Detach VHD\command" /ve 1>nul 2>nul && GOTO :uninstall
reg add "HKCR\.vhd\shell\Attach/Detach VHD\command" /t REG_EXPAND_SZ /d "%%SystemRoot%%\system32\vhd_mnt.cmd \"%%1\"" /f >nul
reg add "HKCR\.vhd\shell\Create Dif VHD\command" /t REG_EXPAND_SZ /d "%%SystemRoot%%\system32\vhd_mnt.cmd \"%%1\" PARENT" /f >nul
reg add "HKCR\.vhd\DefaultIcon" /t REG_EXPAND_SZ /d "%%SystemRoot%%\system32\shell32.dll,8" /f >nul
COPY /y "%~f0" "%SystemRoot%\system32\vhd_mnt.cmd" >nul
echo.
echo. VHD_Mount has been installed.
echo.
echo. Now you can doubleclick a VHD file to Attach/Detach,
echo. or Create a Differencing VHD from selected Parent VHD
echo.
echo. Based on VHD_MNT by chenall 2011-04-29
echo. http://chenall.net/post/vhd_mnt
PAUSE
EXIT

:uninstall
echo.
reg delete "HKCR\.vhd\shell" /f >nul
DEL /f "%SystemRoot%\system32\vhd_mnt.cmd"
echo.
echo. VHD_Mount has been uninstalled.
echo.
echo. Based on VHD_MNT by chenall 2011-04-29
echo. http://chenall.net/post/vhd_mnt
PAUSE
EXIT