Adding a custom folder into Outlook-NameSpace

Hi there!

I use a com-addin to enhance my Outlook 2000.

When i try to add a New Folter directly into the Outlook Namespace-Object (or more exactly: into the Folders-Object of the Namespace-Object), is says, that is was unable to Create it. Unfortunately, it didnt say why.

The Second Question: When i have a Shell-Namespace-Extension. could i implement this into outlook 2000? i tried it, it do even load my tiny dll, but it says, that it could show anything. But it works for the "Webfolder"-Namespace-Extension. Why?

Thanks in advance

For this sense - Richie