  We present the next-to-leading-order calculation of the partial decay widths
of light CP-even Higgs bosons decaying into four fermions in the
Two-Higgs-Doublet Model and a Singlet Extension of the Standard Model.
Different renormalization schemes are applied in the calculation, which is
implemented into the analysis tool PROPHECY4F. Some sample results on the
Higgs->4fermions decay widths illustrate how the corrections reduce the
dependence on the renormalization scale and the choice of the scheme.
