Greetings Zimbrians! (Zimbrains?)

I have what I hope is an easy question. Where do I get the MAPI dll for client side Outlook connections? We've downloaded the source and can't seem to find this piece. Is this something Zimbra will sell or license seperately? Is it not done yet? Or, most likely, am I just blind and not seeing it?

Any pointers to how or where one aquires this piece would be appreciated.