  We investigate the hydrodynamics of two identical hypersonic stellar winds in
a binary system. The interaction of these winds manifests itself in the form of
two shocks and a contact surface between them. We neglect the binary rotation
and assume that the gas flow ahead of the shocks is spherically symmetrical. In
this case the contact surface that separates the gas emanated from the
different stars coincides with the midplane of the binary components. In the
shock the gas is heated and flows away nearly along the contact surface. We
find the shock shape and the hot gas parameters in the shock layer between the
shock and the contact surface.
