  In this paper we present new observational evidence that supports the
presence of an extra source of continuum emission in the binary system beta
Lyrae. New VLA and IRAM observations, together with published data from the
literature and ISO archive data, allow us to build the Spectral Energy
Distribution of the binary between 5x10^9 Hz and 5x10^15Hz. The
radio-millimeter part of the spectrum is consistent with free-free emission
from a symbiotic-like wind associated with the primary component and ionized by
the radiation field of the hidden companion. Furthermore, we also consider the
possibility that the observed radio flux originates from collimated radio
structures associated with the mass gaining component and its disk (Conical
thermal jets). An extrapolation of this emission to the far-IR part of the
spectrum indicates that in both cases the free-free contribution at these
frequencies cannot explain the observations and that the observed infrared
excess flux is due principally to the secondary component and its associated
disk.
