creo que esto te ayudara:
Const SWP_NOMOVE = 2
Const SWP_NOSIZE = 1
Const HWND_TOPMOST = -1
Const HWND_NOTOPMOST = -2 '
Private Declare Function SetWindowPos _
Lib "user32" ( _
ByVal hWnd As Long, _
ByVal hWndInsertAfter As Long, _
ByVal X As Long, ByVal Y As Long, _
ByVal cX As Long, _
ByVal cY As Long, _
ByVal wFlags As Long) As Long
Private Sub Form_Load()
SetWindowPos Me.hWnd, HWND_TOPMOST, 0, 0, 0, 0, _
SWP_NOMOVE Or SWP_NOSIZE
End Sub
saludos
lee mas arriba y fijate que ya lo pusieron como 10 veces al code...