NirCmd is a small utility that allows you to do many useful tasks from command-line, without displaying any user interface: change your display settings, turn off your monitor, open the door of your CD-ROM drive, and more... This utility can work in all 32-bit Windows operating systems: Windows 9x/ME, Windows NT, Windows 2000, Windows XP, Windows Server 2003, and Windows Vista. However, some of NirCmd commands works only on Windows NT/2000/XP/2003/Vista. Open the door of J: CD-ROM drive nircmd.exe cdrom open j: Close the door of Y: CD-ROM drive nircmd.exe cdrom close y: Speaks the text currently in the clipboard (For Windows XP/Vista/7/8). speak text ~$clipboard$ Speaks the text stored inside speak.txt into speak.wav filename (For Windows XP/Vista/7/8). speak file "c:\temp\speak.txt" 0 100 "c:\temp\speak.wav" 48kHz16BitStereo Increase the system volume by 2000 units (out of 65535) nircmd.exe changesysvolume 2000 Decrease the system volume by 5000 units (out of 65535) nircmd.exe changesysvolume -5000 Set the volume to the highest value nircmd.exe setsysvolume 65535 Mute the system volume nircmd.exe mutesysvolume 1 Unmute the system volume nircmd.exe mutesysvolume 0 Switch the system volume between the mute and normal state. nircmd.exe mutesysvolume 2 Create a shortcut on your desktop that switch the system volume between the mute and normal state. nircmd.exe cmdshortcut "~$folder.desktop$" "Switch Volume" mutesysvolume 2 Turn off the monitor nircmd.exe monitor off Start the default screen saver nircmd.exe screensaver Put your computer in 'standby' mode nircmd.exe standby log off the current user nircmd.exe exitwin logoff Ask if you want to reboot, and if you answer 'Yes', reboot the computer. nircmd.exe qboxcom "Do you want to reboot ?" "question" exitwin reboot Turn off your computer nircmd.exe exitwin poweroff Turn off all computers specified in computers.txt ! multiremote copy "c:\temp\computers.txt" exitwin poweroff force Dial to "My Interne