Private Const WM_KEYDOWN = &H100

Protected Overrides Function ProcessKeyPreview(ByRef m As System.Windows.Forms.Message) As Boolean
Dim keyCode As Keys = CType(m.WParam.ToInt32() And Keys.KeyCode, Keys)
If m.Msg = WM_KEYDOWN And keyCode = Keys.Enter Then
SendKeys.Send("{TAB}")
Return True
End If
Return MyBase.ProcessKeyPreview(m)
End Function