The code works equally well for me using:
Code:
Private Sub wdApp_WindowActivate(ByVal Doc As Document, ByVal Wn As Window)
Wn.View.ShowHeading 1
Wn.DocumentMap = True
End Sub
or:
Code:
Private Sub wdApp_WindowActivate(ByVal Doc As Document, ByVal Wn As Window)
Doc.ActiveWindow.View.ShowHeading 1
Doc.ActiveWindow.DocumentMap = True
End Sub