This paper studies the electroweak production of all possible four-fer
mion states in e(+)e(-) collisions. Since the methods employed to eval
uate the complete matrix elements and phase space are very general, al
l four-fermion final states in which the charged particles are detecte
d can be considered. Also all kinds of experimental cuts can be impose
d. With the help of the constructed event generator a large number of
illustrative results is obtained, which show the relevance of backgrou
nds to a number of signals. For LEP 200 the W-pair signal and its back
ground are discussed, for higher energies also Z-pair and single W and
Z signals and backgrounds are presented.