Office Object Model is inconsistant...

Please look at the following two code pieces:

Code:

---

Option Explicit
Dim MyWord as Word.Application
Dim oCBars as Office.CommandBars
Dim oCBar as Office.CommandBar
Dim WithEvents oMyButton as Office.CommandBarButton

Private Sub IDTExtensibility2_OnConnection(ByVal Application As Object, _
                                          ByVal ConnectMode As AddInDesignerObjects.ext_ConnectMode, _
                                          ByVal AddInInst As Object, _
                                          custom() As Variant)
    Set MyWord = Application
    Set oCBars = MyWord.CommandBars
    Set oCBar = oCBars.Add("MyToolBar", msoBarTop, , True)
    oCBar.Visible = True
    Set oMyButton = oCBar.Controls.Add(msoControlButton, , , , True)
    Clipboard.Clear
    Clipboard.SetData LoadPicture("ButtonFace.bmp")
    oMyButton.PasteFace
    oMyButton.Visible = True
    oMyButton.Caption = "Click Me"

---

and

Code:

---

Option Explicit
Dim MyOutlook as Outlook.Application
Dim oCBars as Office.CommandBars
Dim oCBar as Office.CommandBar
Dim WithEvents oMyButton as Office.CommandBarButton

Private Sub IDTExtensibility2_OnConnection(ByVal Application As Object, _
                                          ByVal ConnectMode As AddInDesignerObjects.ext_ConnectMode, _
                                          ByVal AddInInst As Object, _
                                          custom() As Variant)
    Set MyOutlook = Application
    Set oCBars = MyOutlook.CommandBars
    Set oCBar = oCBars.ActiveExplorer.Add("MyToolBar", msoBarTop, , True)
    oCBar.Visible = True
    Set oMyButton = oCBar.Controls.Add(msoControlButton, , , , True)
    Clipboard.Clear
    Clipboard.SetData LoadPicture("ButtonFace.bmp")
    oMyButton.PasteFace
    oMyButton.Visible = True
    oMyButton.Caption = "Click Me"

---

Now, why does the first piece of code (For Word 2000) create a button on the toolbar with the bitmap as a face and the Caption as Tooltip, While the second piece of code (For Outlook 2000)creates a button on the toolbar with the caption as a face, and no Bitmap???