@DIV
Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\Directory\shell\cmd]
@="コマンドプロンプト"

[HKEY_CLASSES_ROOT\Directory\shell\cmd\command]
@="cmd.exe /k \"cd %L\""
@END

http://lightbox.on.coocan.jp/image/cmd_exe_prop.png