  This report consists of three parts. In Chapter 1 we present a brief
description of the LEPTOP approach for the calculation of the radiative
corrections in the Minimal Standard Model. The approach is based on the
one-loop approximation with respect to the genuinely electroweak interaction
for which simple explicit analytical formulae are valid. Starting from
$G_{\mu}, m_Z$ and $\bar{\alpha}\equiv \alpha(m^2_Z)$ as the main input
parameters, we consider all observables of the $Z$ boson decays and the mass of
the $W$ boson on the same footing. The dressing with gluonic corrections is
performed by using the results of calculations published by other authors. In
Chapter 2 theoretical uncertainties inherent to our approach and hence to the
LEPTOP computer program are analyzed. In Chapter 3 we describe the Fortran code
of LEPTOP. This code can be obtained on request from rozanov@afsmail.cern.ch.
This document can be accessed on http://cppm.in2p3.fr/leptop/intro_leptop.html
by WWW users.

High Energy Physics - Phenomenology