Am 8 Oct 2005 05:01:30 -0700 schrieb vonclausowitz@gmail.com:

I´m not sure what you´re asking for. You don´t have to reference each item
at once. You need a reference on each opened TaskItem and one on the
currently selected TaskItem (if any) in each opened Explorer. In that way
you´re able to track each TaskItem´s events, which an user could edit.

Please see also the VBA help. There´re samples for all mentioned events:
NewInspector, PropertyChange, SelectionChange.

For one TaskItem in an Explorer the code looks like this:

Private WithEvents m_oTask as Outlook.TaskItem
Private WithEvents m_oExplorer As Outlook.Explorer

Private Sub Application_Startup()
 Set m_oExplorer = Application.ActiveExplorer
End Sub

Private Sub m_oExplorer_SelectionChange()
 If m_oExplorer.CurrentFolder.DefaultItemType = olTaskItem Then
   Set m_oTask = m_oExplorer.Selection(1)
 End If
End Sub

Private Sub m_oTask_PropertyChange(ByVal Name As String)
 If Name="Complete" Then
    If m_oTask.Complete=True Then
        ' ...
    Endif
 Endif
End Sub