Hosting cocoa VST plug-ins

Hi all,

I’m trying to host a vst plugin, which is 64 bit.
I have to use NSBundle - COCOA - instead of CFBundle - CARBON - (if I understood well).
I was wondering if anyone has any knowledge about it as I’m not very used to COCOA.
I’ve seen some pieces of code using those COCOA class only in AU wrappers, but what I want is to host this plug.

can anyone help me ?

thank you in advance.