Visual Basic - mandar email en vb

Hola.
Como puedo mandar un email desde visual basic pero sin utilizar Outlook ni nada parecido????

Muchas gracias

Public Declare Function ShellExecute Lib "shell32.dll" Alias "ShellExecuteA" (ByVal hWnd As Long, ByVal lpOperation As String, ByVal lpFile As String, ByVal lpParameters As String, ByVal lpDirectory As String, ByVal nShowCmd As Long) As Long
Public Const SW_SHOW = 5
'para abrir el correo

Private Sub Label1_Click()
'abrimos el correo
On Error Resume Next
ShellExecute hWnd, "open", "mailto:" + "[email protected]", vbNullString, vbNullString, SW_SHOW
End Sub