  The dynamics of a binary system with non conserved order parameter under a
plain shear flow with rate $\gamma $ is solved analytically in the large-N
limit. A phase transition is observed at a critical temperature $T_c(\gamma)$.
After a quench from a high temperature equilibrium state to a lower temperature
$T$ a non-equilibrium stationary state is entered when $T>T_c(\gamma)$, while
aging dynamics characterizes the phases with $T\leq T_c(\gamma)$. Two-time
quantities are computed and the off-equilibrium generalization of the
fluctuation-dissipation theorem is provided.
