We present precise predictions for the processese+e−→WW→4f(&ggr;)at LEP2 and future Linear-Collider (LC) energies obtained with the Monte Carlo generator RACOONWW. The program RACOONWW includes the completeO(&agr;)electroweak radiative corrections toe+e−→WW→4fin the double-pole approximation (DPA). While the virtual corrections are treated in DPA, the calculation of the bremsstrahlung corrections is based on the full lowest-order matrix elements to the processese+e−→4f+&ggr;.This asymmetric treatment of virtual and real photons requires a careful matching of the arising infrared and collinear singularities. We also take into account higher-order initial-state photon radiation via the structure-function method. Here, we briefly describe the RACOONWW approach, give numerical results for the total W-pair production cross sections, confront them with LEP2 data, and study the impact of the radiative corrections on angular and W-invariant-mass distributions at LEP2 and LC energies. ©2000 American Institute of Physics.