The IABLogon::GetOneOffTable method returns a table of one-off templates for creating recipients to be added to the recipient list of an outgoing message.
See IABLogon : IUnknown.
HRESULT GetOneOffTable(
ULONG ulFlags,
LPMAPITABLE FAR * lppTable
);
MAPI calls the IABLogon::GetOneOffTable method to make available one-off templates for creating recipients. The new recipients are added to the recipient list of an outgoing message. Address book providers should support notification on their one-off table to inform MAPI of template modifications. MAPI keeps the one-off table open to enable dynamic updating.
Address book providers can also support a one-off table for each of their containers. Callers retrieve this one-off table by calling the container's IMAPIProp::OpenProperty method and requesting the PR_CREATE_TEMPLATES property. The templates available through this table are used to add recipients to the container. For a discussion of the differences between the two types of one-off tables, see Implementing One-Off Tables.
For a list of the required columns in an address book provider's one-off table, see One-Off Tables.
IABContainer::CreateEntry, IAddrBook::NewEntry, IMAPISupport::GetOneOffTable