  We show that the structure of blocks outside the critical hyperplanes of
category O over any symmetrizable Kac-Moody algebra depends only on the
corresponding integral Weyl group and its action on the parameters of the Verma
modules by giving a combinatorial description of the projective objects. As an
application we derive the Kazhdan-Lusztig conjecture for non-integral blocks
from the integral case in finite and affine situations.
