How to set an Exchange Contact's 'Hot Contacts' flag?

[bbCincinnati]

Hi Folks,

Can anyone give a newbie a pointer?

I'm trying to programmatically set an Outlook 'Categories' to true (checked).
The flag/field I want to set is 'Hot Contacts'.
I believe the field that corresponds to 'Categories' is 'Keywords'.
I think that it is an array of strings.
So, I'm trying to set it something like this:

targData["Keywords"]["Hot Contacts"] = true;

(Where targData is the object accessing Exchange's contacts fields).
I'm very doubtful that I have the syntax right, especially since my code blows up.

Can anyone point me in the right direction?

Thanks