Outlook 2007 and later use Windows search, but what Outlook does and uses with it is not exposed anywhere in the object model. You could use the Windows search object model yourself but you'd be on your own for any indexed keywords.
I am building a outlook plugin to provide targetted links based on the content. I wanted to use the index that outlook already maintain for this mail Item. Is there a way to get access to all the keywords that outlook has tagged this message. So that
I can use these keywords instead of building my own list of keywords.
Ken Slovak MVP - Outlook