  Microlensing results towards the LMC strongly depend on the properties of
both the luminous and the dark matter distribution in the Galaxy. The two main
sources of uncertainty come from the poor knowledge of the rotation curve at
large galactocentric distance and from the possibility that MACHOs follow
radial orbits in the outer Galaxy. Given these uncertainties MACHO mass values
$ \sim 0.1~ M_{\odot}$ are still consistent with observations and thus brown
dwarfs are to date viable candidates for MACHOs.
