Address book attributes are Microsoft Exchange directory attributes on recipient (address book) objects. The EMSABTAG.H file contains property tag definitions for the standard properties of Microsoft Exchange address book objects.
To open an address book attribute through MAPI, look up the attribute's property tag in EMSABTAG.H — or in the following table — and then pass that property tag in a call to the MAPI method IMAPIProp::GetProps.
The following table lists attributes on the various kinds of recipient objects in the Microsoft Exchange Server directory. The MAPI property names in the second column can be derived from the directory attribute names in the first column. To do this, append PR_EMS_AB_ as a prefix to the directory attribute name, replace any hyphens with underscore characters, and make all letters uppercase.
Properties Declared in EMSABTAG.H