Returns the programmatic identifier (ProgID) for the specified COMAddIn object. Read-only String.
The following example displays the ProgID and GUID for COM add-in one in a message box.
MsgBox "My ProgID is " & _
Application.COMAddIns(1).ProgID & _
" and my GUID is " & _
Application.COMAddIns(1).Guid