The production of four fermions plus a visible photon in electron-positron
collisions is analyzed, with particular emphasis on the LEP2 energy range.
The study is based on the calculation of exact matrix elements, including t
he effect of fermion masses. In the light of the present measurements perfo
rmed at LEP, triple and quartic anomalous gauge couplings are taken into ac
count. Due to the presence of a visible photon in the final state, particul
ar attention is paid to the treatment of higher-order QED corrections. Expl
icit results for integrated cross sections and differential distributions a
re shown and commented on. The features of the Monte Carlo program WRAP. us
ed to perform the calculation and available for experimental analysis, are
described.