  We compute the predicted optical depth and duration distribution of
microlensing events towards Baade's window in a model composed of a Galactic
disk and a bar. The bar model is a self-consistent dynamical model built out of
individual orbits that has been populated to be consistent with the COBE maps
of the Galaxy and kinematic observations of the Bulge. We find most of the
lenses are at 6.25 kpc in BW. The microlensing optical depth of a 2E10 Msun bar
plus a truncated disk is (2.2+-0.3)E-6, consistent with the very large optical
depth (3.2+-1.2)E-6 found by Udalski et al. (1994). This prediction doubles
that of axisymmetric models by Kiraga and Paczynski (1994) since the bar is
elongated along the line-of-sight. The large Einstein radius and small
transverse velocity dispersion also predict a longer event duration in the bar
model than the KP model. The event rate and duration distribution also depend
on the lower mass cutoff of the lens mass function. With a 0.1Msun cutoff, 5-7
events of typical 20 days duration are expected for the OGLE experiment
according to our model, while Udalski et al. observed 9 events with durations
from 8-62 days. On the other hand, if most of the lenses are brown dwarfs, our
model predicts too many short duration events; a KS test finds only 7%
probability for the model with 0.01Msun cutoff to be consistent with current
data.
