Remove user defined item property in Outlook 2003

Hello everyone!

I am trying to find a way how to access the collection of user defined
properties that have been programmatically added to a folder in
Outlook 2003 and i am not having much luck.

I am using VS2008 and working on an Outlook 2003 add-in and while i
have found several references to the UserDefinedProperties collection
in Outlook 2007 i have come up empty on such a collection for Outlook
2003.

any help with this would be greatly appreciated.

thanks.

TSA