  We study the hot electroweak phase transition (EWPT) by 4-dimensional lattice
simulations on lattices with symmetric and asymmetric lattice spacings and give
the phase diagram. A continuum extrapolation is done. We find first order phase
transition for Higgs-boson masses $m_H<66.5 \pm 1.4$ GeV. Above this end point
a rapid cross-over occurs. Our result agrees with that of the dimensional
reduction approach. It also indicates that the fermionic sector of the Standard
Model (SM) may be included perturbatively. We get for the SM end point $72.4
\pm 1.7$ GeV. Thus, the LEP Higgs-boson mass lower bound excludes any EWPT in
the SM.
