From what I've be able to search so far it looks like not an easy task. The last link I send you may help, I guess.

>Naomi,
>
>Thanks, I'm trying to find a direct .Net framework call I can make instead of using shell.application.
>
>>It is certainly doable in .NET using shell application, though I found C++ sample and this one
>>http://www.shellplus.com/examples/namespace-extension-example.html
>> for now.