How to control Windows system volume using JScript or VBScript?

Question

I want to control the volume of my Windows system from a JScript or VBScript script. Any ideas?

Also, can I unmute the system volume if it is muted?

Answer 1

On Windows 7 I could do this by controlling the keystrokes using WScript.

set oShell = CreateObject("WScript.Shell") 
oShell.run"%SystemRoot%\System32\SndVol.exe" 
WScript.Sleep 1500 
oShell.SendKeys"{TAB} " ' Tab to the mute and press space
oShell.SendKeys"%{F4}"  ' ALT F4 to exit the app.

I saved it in to a file called Mute-Sound.vbs and created a shortcut on the desktop to assign a shortcut key. CTRL+ALT+F12. For some reason the keyboard shortcuts only work if they are on the desktop so I am not sure how reliable keyboard shortcuts are!