  A search for the Higgs boson produced in association with a W or Z boson in
proton-proton collisions at a center-of-mass energy of 7 TeV is performed with
the CMS detector at the LHC using the full 2011 data sample, from an integrated
luminosity of 5 inverse femtobarns. Higgs boson decay modes to tau tau and WW
are explored by selecting events with three or four leptons in the final state.
No excess above background expectations is observed, resulting in exclusion
limits on the product of Higgs associated production cross section and decay
branching fraction for Higgs boson masses between 110 and 200 GeV in these
channels. Combining these results with other CMS associated production searches
using the same dataset in the H to gamma gamma and H to b b-bar decay modes,
the cross section for associated Higgs boson production 3.3 times the standard
model expectation or larger is ruled out at the 95% confidence level for a
Higgs boson mass of 125 GeV.
