Why not record the wav files yourself. I've not really used VB.Net but I would assume the same old APIs for playing the wav files should work. For instance:
VB Code:
Private Declare Function sndPlaySound Lib "winmm.dll" Alias "sndPlaySoundA" _
(ByVal lpszSoundName As String, ByVal uFlags As Long) As Long
Const SND_SYNC = &H0
Const SND_ASYNC = &H1
Const SND_NODEFAULT = &H2
Const SND_LOOP = &H8
Const SND_NOSTOP = &H10
Public Sub RunWAV()
SoundFile$ = "c:\Logoff.wav"
wFlags% = SND_ASYNC Or SND_NODEFAULT
x% = sndPlaySound(SoundFile$, wFlags%)
End Sub