Outlook Programming Series # 8 : How to update existing items in an Outlook folder to use a new custom form?

Welcome to Outlook Programming series  # 8

In this series, we will learn "How to update existing items in an Outlook folder to use a new custom form?". I found this MSDN article which describes programatically how to update existing items in an Outlook folder to use a new custom form? 

This article describes how to update items in an Outlook folder so that those items open using a different form than the form that the items are currently associated with.