Micro-Simulation Technology has developed the most advanced Windows XP-based nuclear power plant simulator, PCTRAN, for all types of water cooled nuclear reactors. Plant types include PWR, BWR and advanced AREVA EPR, Westinghouse AP1000 and GE ABWR. Simulation scope is extended to severe accident and dose dispersion. Since its first introduction in 1985, PCTRAN has been selected by IAEA as the training material for its annual Advanced Reactor Simulation workshop. Plant specific models were insta