  A new method of including the complete NLO QCD corrections to hard processes
in the LO parton-shower Monte Carlo (PSMC) is presented. This method, called
KrkNLO, requires the use of parton distribution functions in a dedicated Monte
Carlo factorization scheme, which is also discussed in this paper. In the
future, it may simplify introduction of the NNLO corrections to hard processes
and the NLO corrections to PSMC. Details of the method and numerical examples
of its practical implementation, as well as comparisons with other
calculations, such as MCFM, MC@NLO, POWHEG, for single $Z/\gamma^*$-boson
production at the LHC, are presented.
