  We use Kazhdan-Lusztig tensoring to, first, describe annihilating ideals of
highest weight modules over an affine Lie algebra in terms of the corresponding
VOA and, second, to classify tilting functors, an affine analogue of projective
functors known in the case of a simple Lie algebra. For the sake of
completeness, the classification of annihilating ideals is borrowed from our
previous work, q-alg/9711011; the part on tilting functors is new.
