  The general-purpose self-adapting Monte Carlo (MC) event generator/simulator
mFOAM (standing for mini-FOAM) is a new compact version of the FOAM program,
with a slightly limited functionality with respect to its parent version. On
the other hand, mFOAM is easier to use for the average user. This new version
is fully integrated with the ROOT package, the C++ utility library used widely
in the particle physics community. The internal structure of the code is
simplified and the very valuable feature of the persistency of the objects of
the mFOAM class is improved. With the persistency at hand, it is possible to
record very easily the complete state of a MC simulator object based on mFOAM
and ROOT into a disk-file at any stage of its use: just after object
allocation, after full initialization (exploration of the distribution), or at
any time during the generation of the long series of MC events. Later on the MC
simulator object can be easily restored from the disk-file in the ``ready to
go'' state. Objects of TFoam class can be used as a stand-alone solution to
many everyday problems in the area of the Monte Carlo simulation, or as
building blocks in large-scale MC projects, taking full advantage of the
object-oriented technology and persistency.
