  We analyse here some programming tools (MC-generators) from viewpoint of
their application to the tasks of dark matter (DM) interpretation of cosmic
rays puzzles. We shortly describe our tasks, where the main goal is the
solution of the problem of suppression of gamma-rays induced by the products of
DM decay or annihilation in Galaxy. We show that existing MC-generators do not
fully satisfy our task, comparing them, and suggest our own one.
