NirCmd

NirCmd is a small command-line utility that allows you to do some useful tasks without displaying any user interface.
By running NirCmd with simple command-line option, you can write and delete values and keys in the Registry, write values into INI file, dial to your internet account or connect to a VPN network, restart windows or shut down the computer, create shortcut to a file, change the created/modified date of a file, change your display settings, turn off your monitor, open the door of your CD-ROM drive, and more…
System Requirements
This utility can work in all versions of Windows operating system: Windows 9x/ME, Windows NT, Windows 2000, Windows XP, Windows Server 2003, Windows Vista, Windows Server 2008, Windows 7, and Windows 8.
Examples of what you can do with NirCmd