http://www.askvg.com/enable-open-command-window-here-option-in-context-menu-in-windows-vista/
In this tutorial, we'll tell you how to permanently enable that hidden "Open Command Window here" option in context menu so that it always shows in context menu without any need to press
Simply follow these simple steps:
1. Type regedit in RUN or Start Menu search box and press Enter. It'll open Registry Editor.
2. Now go to following keys one by one:
HKEY_CLASSES_ROOT\Directory\shell\cmd
HKEY_CLASSES_ROOT\Drive\shell\cmd
3. In right-side pane, you'll get a String value Extended. Delete it and the option will get enabled permanently in folders as well as drives context menus.
PS: If you want to enable this option in Desktop context menu as well, follow the same steps for following key:
HKEY_CLASSES_ROOT\Directory\Background\shell\cmd
Now you'll always get "Open Command Window Here" option in context menu and you'll not need to press SHIFT key any more.
