Reg-AccessibilityOptions
From nswccWiki
This disables the noise on the Accessibility Keys such as sticky, filter and toggle keys. Having found that students like to use them to continually turn on and off to make the horrible noise associated with them. ALT + L-SHIFT + NUM LOCK seems to be the favorite for annoyance factor.
Do not use this if you have people who actually need them. Or, alternatively, enable them for users that need it, and disable for users that don't. This could be done as part of a login script, Group/System Policy, or using the Novell equivalent. This tweak if placed in a login script will turn the keys off on login to avoid confusion for students who do not know what they are.
Windows Registry Editor Version 5.00 [HKEY_CURRENT_USER\Control Panel\Accessibility] "Sound on Activation"=dword:00000000 [HKEY_CURRENT_USER\Control Panel\Accessibility\Blind Access] "On"="0" [HKEY_CURRENT_USER\Control Panel\Accessibility\HighContrast] "Flags"="110" "High Contrast Scheme"="High Contrast Black (large)" "Volital HC Scheme"="High Contrast Black (large)" [HKEY_CURRENT_USER\Control Panel\Accessibility\Keyboard Preference] "On"="0" [HKEY_CURRENT_USER\Control Panel\Accessibility\Keyboard Response] "AutoRepeatDelay"="1000" "AutoRepeatRate"="500" "BounceTime"="0" "DelayBeforeAcceptance"="1000" "Flags"="110" "Last BounceKey Setting"=dword:000001f4 "Last Valid Delay"=dword:000003e8 "Last Valid Repeat"=dword:000001f4 "Last Valid Wait"=dword:000003e8 [HKEY_CURRENT_USER\Control Panel\Accessibility\MouseKeys] "Flags"="46" "MaximumSpeed"="80" "TimeToMaximumSpeed"="3000" [HKEY_CURRENT_USER\Control Panel\Accessibility\SerialKeys] [HKEY_CURRENT_USER\Control Panel\Accessibility\ShowSounds] "On"="0" [HKEY_CURRENT_USER\Control Panel\Accessibility\SoundSentry] "Flags"="2" "FSTextEffect"="0" "WindowsEffect"="0" "TextEffect"="0" [HKEY_CURRENT_USER\Control Panel\Accessibility\StickyKeys] "Flags"="494" [HKEY_CURRENT_USER\Control Panel\Accessibility\TimeOut] "Flags"="0" "TimeToWait"="300000" [HKEY_CURRENT_USER\Control Panel\Accessibility\ToggleKeys] "Flags"="46"