The SoundItemNotFound setting defines the .WAV sound file played when an invalid item is scanned.
A .WAV sound file name and optional folder path.
SoundItemNotFound=C:\MySounds\CHORD.WAV (file located in the C:\MySounds folder)
SoundItemNotFound=Data\CHORD.WAV (file located in the \Keystroke\DataA folder)
SoundItemNotFound=CHORD.WAV (file located in the \Keystroke\Forms\Sounds folder)
DING.WAV (file located in the \Keystroke\Forms\Sounds folder)