To play a wav sound
Place this in the top of your form code
Private Declare Function PlaySound Lib "winmm.dll" Alias "PlaySoundA" (ByVal lpszName As String, ByVal hModule As Long, ByVal dwFlags As Long) As Long
Then call this line to play the sound
Call PlaySound("c:\MySound.wav", 0, &H0)
For MP3s you may have to add Windows Media Player to your application