  In the Minimal Supersymmetric Standard Model (MSSM) we present the
corrections to the heavy neutral CP-even Higgs-boson production in the
WW-fusion and Higgs-strahlung channel, e+e- -> \bar nu nu H, taking into
account all O(\alpha) corrections arising from loops of fermions and sfermions.
While the H boson shows decoupling behavior at the tree-level, we find
non-negligible loop corrections that can enhance the cross section
considerably. At a center-of-mass energy of \sqrt{s} = 1000 GeV, masses of up
to M_H <= 750 GeV are accessible at the LC in favorable regions of the MSSM
parameter space.
