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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 …

Security

“If nircmd.exe is located in the C:\Windows folder, the security rating is 59% dangerous. The file size is 119,296 bytes (50% of all occurrences) or 60,416 bytes. The program has no visible window. It is not a Windows system file. Nircmd.exe is able to monitor applications.” Fair Use Source: https://www.file.net/process/nircmd.exe.html

License

This utility is released as freeware. You are allowed to freely distribute this utility via floppy disk, CD-ROM, Internet, or in any other way, as long as you don't charge anything for this. If you distribute this utility, you must include all files in the distribution package, without any modification !

Examples of what you can do with NirCmd

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 Internet” connection nircmd.exe rasdial “My Internet”

Disconnect the “My Internet” connection nircmd.exe rashangup “My Internet”

Make your Internet Explorer windows 75% transparent ! (192 / 256) nircmd.exe win trans ititle “internet explorer” 192

Minimize all your Internet Explorer windows nircmd.exe win min class “IEFrame”

Close all your Internet Explorer windows nircmd.exe win close class “IEFrame”

Close all your Explorer windows (My Computer, folders, and so on) nircmd.exe win close class “CabinetWClass”

Hide all your Internet Explorer windows nircmd.exe win hide class “IEFrame”

Show all your Internet Explorer windows (after you made them hidden with previous example) nircmd.exe win show class “IEFrame”

Center all top-level windows nircmd.exe win center alltop

Remove the title bar of My Computer window. nircmd.exe win -style title “my computer” 0x00C00000

Return the title bar of My Computer window that we removed in the previous example. nircmd.exe win +style title “my computer” 0x00C00000

Create a shortcut on your desktop that closes all your Internet Explorer windows nircmd.exe cmdshortcut “ ~$folder.desktop$ “Close All IE” win close class “IEFrame”

Create a shortcut on your desktop that hides all your Internet Explorer windows nircmd.exe cmdshortcut ” “~$folder.desktop$ “Hide All IE” win hide class “IEFrame”

Create a shortcut on your desktop that shows back all your Internet Explorer windows nircmd.exe cmdshortcut ” ~$folder.desktop$ “Show All IE” win show class “IEFrame”

Set the Windows Calculator as top-most window (above all other windows) nircmd.exe win settopmost title “Calculator” 1

Set the Windows Calculator back to regular window (non top-most window) nircmd.exe win settopmost title “Calculator” 0

Create a shortcut to Windows calculator under Start Menu→Programs→Calculators nircmd.exe shortcut “f:\winnt\system32\calc.exe” “~$folder.programs$\Calculators” “Windows Calculator”

Hide the desktop window nircmd.exe win hide class progman

Show the desktop window (After hiding it in previous example) nircmd.exe win show class progman

Hide the start button on the system tray nircmd.exe win child class “Shell_TrayWnd” hide class “button”

Show the start button on the system tray nircmd.exe win child class “Shell_TrayWnd” show class “button”

Hide the clock on the system tray nircmd.exe win child class “Shell_TrayWnd” hide class “TrayClockWClass”

Show the clock on the system tray nircmd.exe win child class “Shell_TrayWnd” show class “TrayClockWClass”

Kill (terminate) all instance of Internet Explorer processes nircmd.exe killprocess iexplore.exe

Create a shortcut on your desktop that opens the door of K: CDROM drive when you run it. nircmd.exe cmdshortcut “~$folder.desktop$” “Open CDROM” cdrom open k:

Create a shortcut to NirSoft Web site on your desktop nircmd.exe urlshortcut “http://www.nirsoft.net” “~$folder.desktop$” “NirSoft”

Add NirSoft Web site to your Favorities under Links folder. nircmd.exe urlshortcut “http://www.nirsoft.net” “~$folder.favorites$\Links” “NirSoft”

Create a shortcut to NirSoft Web site on the desktop of all computers listed in computers.txt nircmd.exe multiremote copy “c:\temp\computers.txt” urlshortcut “http://www.nirsoft.net” “~$folder.common_desktop$” “NirSoft”

Set the display mode to 800x600x24bit colors nircmd.exe setdisplay 800 600 24

Create a shortcut on the desktop that set the display mode to 800x600x24bit colors nircmd.exe cmdshortcut “~$folder.desktop$” “800x600x24” setdisplay 800 600 24

Copy all shortcuts on your desktop to another folder (f:\temp\desktop). nircmd.exe execmd copy “~$folder.desktop$\*.lnk” f:\temp\desktop

Restart your Apache server (under Windows NT/2000/XP/2003) nircmd.exe service restart apache

Create a shortcut on your desktop that restarts the Apache server nircmd.exe cmdshortcut “~$folder.desktop$” “Restart Apache” service restart apache

Restart your IIS nircmd.exe service restart w3svc

Restart MySql nircmd.exe service restart MySql

Open the desired Registry key/value in RegEdit nircmd.exe regedit “HKLM\Software\Microsoft\Windows\CurrentVersion” “CommonFilesDir”

Open the Registry key that you copied to the clipboard in RegEdit. nircmd regedit “~$clipboard$”

Disable the screen saver nircmd.exe regsetval sz “HKCU\control panel\desktop” “ScreenSaveActive” 0

Enable the screen saver nircmd.exe regsetval sz “HKCU\control panel\desktop” “ScreenSaveActive” 1

Change the date/time of the specified filename (creation time and modified time) nircmd.exe setfiletime “c:\temp\myfile.txt” “24-06-2003 17:57:11” “22-11-2005 10:21:56”

Copy your desktop folder path to the clipboard nircmd.exe clipboard set ~$folder.desktop$

Copy your start menu folder path to the clipboard nircmd.exe clipboard set ~$folder.start_menu$

Copy the content of info1.txt (simple text file) to the clipboard nircmd.exe clipboard readfile “c:\My Files\info1.txt”

Add the text content of clipboard to info1.txt nircmd.exe clipboard addfile “c:\My Files\info1.txt”

Clear the clipboard nircmd.exe clipboard clear

Create all folders specified in “c:\temp\folders.txt”. The folder path names are separated by CRLF characters. nircmd.exe paramsfile “c:\temp\folders.txt” “” “” execmd md ~$fparam.1$

Install the specified .NET assembly in the global assembly cache (like gacutil) nircmd.exe gac install “C:\temp\MyAssembly\bin\MyAssembly.dll”

Empty the recycle bin in all drives. nircmd.exe emptybin

Answer 'Yes' to a standard Windows message-box. nircmd.exe dlg “” “” click yes

Wait 2 seconds, and then save the current screen to shot.png nircmd.exe cmdwait 2000 savescreenshot “f:\temp\shot.png”

Save 10 screenshots in a loop, and wait 60 seconds between the screenshot save calls. The filenames of the screenshot will contain the time and date of the saved screenshot. nircmd.exe loop 10 60000 savescreenshot c:\temp\scr~$currdate.MM_dd_yyyy$-~$currtime.HH_mm_ss$.png

Wait until Firefox is closed, and then say “Firefox was closed” nircmd.exe waitprocess firefox.exe speak text “Firefox was closed”

Run RegEdit with SYSTEM user (On Windows 7/8/Vista/2008), which allows you to view all hidden system Registry keys nircmd.exe elevatecmd runassystem c:\windows\regedit.exe

Display

https://nircmd.nirsoft.net/setdisplay.html

setdisplay {monitor:index/name} [width] [height] [color bits] {refresh rate} {-updatereg} {-allusers} Changes your display settings. The [width] and [height] parameters represents the number of pixels on your screen. The [color bits] parameter represents the number of colors shown on your screen (8 - 256 color, 16 - 16bit color, 24 - 24bit color, and so on). {refresh rate} is an optional parameter that specifies the monitor refresh rate. If you specify the {-updatereg} parameter, the new settings will be saved in the Registry. If you specify both {-updatereg} and {-allusers} parameters, the new settings will be saved in the Registry for all users. If you have multiple monitors, you can use the optional monitor parameter, which specifies for which monitor you want to change the display settings. You can specify the monitor by index (0 for the first monitor, 1 for the second one, and so on) or by specifying a string in the system monitor name. The monitor name can be found in the Device manager of Windows: Right click on the monitor item, and then choose 'Properties'. The string displayed in the 'location' field is the monitor name.

Example:

setdisplay 800 600 24 -updatereg
setdisplay 1024 768 24 90
setdisplay 1024 768 8
setdisplay monitor:1 1024 768 24 90
setdisplay monitor:name1 1024 768 24 90

Other

Other commands: