  We test the recent proposal of using the Ward identities to compute the
K0-K0bar mixing amplitude with Wilson fermions, without the problem of spurious
lattice subtractions. From our simulations, we observe no difference between
the results obtained with and without subtractions. In addition, from the
standard study of the complete set of (delta S=2) operators, we quote the
following (preliminary) results (in the MS(NDR) scheme): Bk(2 GeV)=0.70(10), <
O7^{3/2}>_{K->pi pi} = 0.10(2)(1) GeV^3, < O8^{3/2}>_{K->pi pi} = 0.49(6)(0)
GeV^3.
