  We present a generator for lepton nucleon collisions in the DIS regime,
focusing in particular on processes with a massive lepton and/or a massive
quark in the final state. We have built a full code matching NLO QCD
corrections to parton shower Monte Carlo programs in the POWHEG-BOX framework.
Our code can be used to compute NLO+PS accurate fully differential predictions
for neutral current and charged current processes, including processes with an
incoming tau neutrino, and/or including charm quarks in the final state. We
also made comparisons with available data and predictions for the new neutrino
experiments at CERN.
