Dan Mitchell wrote in
.16:
http://support.microsoft.com/kb/q199870/

And there's more sample code in Q304894, 259298 (which also has a full
listing of the various #import tweaks needed), 220600, 260854, 241287,
260574, and probably more; those are just the ones from the first couple
of pages of kb search results for 'outlook c++'.

-- dan