reboot12

Yes, syntax is other but after fix still not working: Windows Registry Editor Version 5.00 [HKEY_CLASSES_ROOT\Drive\shell\Umount VHD\command] @="\"C:\\Program Files\\VHD Mount\\vhdmount.exe\" /u \"%1\""

Default Mount/Umount command context menu is for VHD files. I want change Umount command from file VHD to mounted Drive like this: Windows Registry Editor Version 5.00 [HKEY_CLASSES_ROOT\Drive\shell\Umount VHD] [HKEY_CLASSES_ROOT\Drive\shell\Umount VHD\command] @="C:\\Program Files\\VHD Mount\\vhdmount.exe /u all" but this not working :-( If manually run this command in cmd this working good and umount all mounted images VHD. What's going on? Why this not working from Drive context menu?