  Deviations from SM expectations in the Higgs sector can be parameterized by
an effective Lagrangian. The corresponding anomalous couplings have been
implemented in a Monte Carlo program for Higgs production in vector boson
fusion, at NLO QCD accuracy. It allows to study anomalous coupling effects for
production and decay of the Higgs boson. We analyze deviations allowed by LEP
data and study a new azimuthal angle variable which directly measures the
interference between CP-even, CP-odd and SM couplings.
