  We present an implementation of electroweak W+W-jj production at hadron
colliders in the POWHEG framework, a method that allows the interfacing of a
next-to-leading order QCD calculation with parton shower Monte Carlo programs.
We provide results for both, fully and semi-leptonic decay modes of the weak
bosons, taking resonant and non-resonant contributions and spin correlations of
the final-state particles into account. To illustrate the versatility of our
implementation, we provide phenomenological results for two representative
scenarios with a light and with a heavy Higgs boson, respectively, and in a
kinematic regime of highly boosted gauge bosons. The impact of the parton
shower is found to depend on the setup and the observable under investigation.
In particular, distributions related to a central-jet veto are more sensitive
to these effects. Therefore the impact of radiation by the parton shower on
next-to-leading order predictions should be assessed carefully on a
case-by-case basis.
