¿Podría pasar con Visual Basic una base de datos de direcciones web al programa Microsoft Outlook?

Hay dos formas, en referencias puedes poner la libreria de objetos (la 10.0 uso yo) de Outlook o declararlo con create object... :
De este modo :
Dim objOutlook As Object
Dim objMailItem
Dim NumOfPath As Integer, i As Integer
Dim AtachPath As String
On Error GoTo 10
NumOfPath = 0
For i = 1 To Len(AllPath)
If Mid(AllPath, i, 1) = "," Then
NumOfPath = NumOfPath + 1
End If
Next i
Set objOutlook = CreateObject("Outlook.Application")
Set objMailItem = objOutlook.CreateItem(olMailItem)
Me.MousePointer = vbHourglass
With objMailItem
.To = EmailAddress
.Subject = MSubject
.Body = MBody
If AllPath <> "" Then
For i = 1 To NumOfPath
AtachPath = PartOfPath(i)
.Attachments.Add AtachPath
Next i
End If
.Send
End With
Set objMailItem = Nothing
Set objOutlook = Nothing
Me.MousePointer = vbDefault
Exit Sub
exit10:
Exit Sub
10:
If Err.Number = 429 Then
MsgBox "Error on connecting with Outlook"
Else
MsgBox "error Description is " & Err.Description & " err number is " & Err.Number
End If
Set objMailItem = Nothing
Set objOutlook = Nothing
Me.MousePointer = vbDefault
AllPath = ""
List1.Clear
Me.Text2.Text = ""
Me.Text3.Text = ""
Resume exit10
End Sub