I turned the default start sound off then wrote a script to play my
desired startup sound and put it in the "Start>Programs>Startup" folder.
==================StartSound.vbs================
Set wmp = CreateObject("WMPlayer.OCX")
wmp.settings.autoStart = True
'----- Set volume 0 to 100
wmp.settings.volume = 100
'----- Enter pathname of desired startup sound.
wmp.URL = "d:\media\sound.wav"
'----- Wait while it plays
while wmp.Playstate <> 1
WSH.Sleep 100
wend
==============================================
This is not the first time I have posted this script. If you want an
endorsement, you can find it here:
http://www.w7forums.com/windows-startup-sound-yet-another-way-t5008.html