Cannot rename default folder using Outlook Object Model (OOM) ?

One of my customer reported that when he tried renaming the default folder using VBA & Outlook Object Model (OOM) for Outlook 2003, he received the following error: “You don’t have appropriate permission to perform this operation.”

As the Outlook 2003 object model was intentionally changed so that you cannot rename default folders, we recommended the customer to make use of Collaboration Data Object library (CDO 1.21) & requested to do the changes per the Knowledge base article.