try this,

VB Code:
  1. Option Explicit
  2. Private Const SND_ASYNC     As Long = &H1
  3. Private Const SND_MEMORY    As Long = &H4
  4. Private Const SND_NODEFAULT = &H2
  5. Private Const Flags& = SND_ASYNC Or SND_NODEFAULT Or SND_MEMORY
  6. Private Declare Function sndPlaySound Lib "winmm.dll" Alias "sndPlaySoundA" (ByVal lpszSoundName As String, _
  7.                                                                              ByVal uFlags As Long) As Long
  8. Private Sub Command1_Click()
  9.  
  10. Dim b As String
  11.     b = StrConv(LoadResData(101, "custom"), vbUnicode)
  12.     sndPlaySound b, Flags&
  13.    
  14. End Sub