Private Declare Function FindWindowEx Lib "user32.dll" Alias _
      "FindWindowExA" (ByVal hwndParent As IntPtr, ByVal hwndChildAfter As _
      IntPtr, ByVal lpszClass As String, ByVal lpszWindow As String) As IntPtr
 
    Private Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal _
      lpClassName As String, ByVal lpWindowName As String) As IntPtr
 
Public Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal _
  hWnd As IntPtr, ByVal wMsg As Integer, ByVal wParam As Integer, ByVal lParam _
  As Integer) As Integer

Ralf