  NMSPEC is a Fortran code that computes the sparticle and Higgs masses, as
well as Higgs decay widths and couplings in the NMSSM, with soft SUSY breaking
terms specified at MGUT. Exceptions are the soft singlet mass m_s^2 and the
singlet self coupling kappa, that are both determined in terms of the other
parameters through the minimization equations of the Higgs potential. We
present a first analysis of the NMSSM parameter space with universal SUSY
breaking terms at MGUT -- except for m_s and A_kappa -- that passes present
experimental constraints on sparticle and Higgs masses. We discuss in some
detail a region in parameter space where a SM-like Higgs boson decays
dominantly into two CP odd singlet-like Higgs states.
