Two-jet cross sections in deep inelastic scattering at HERA are calculated in
next-to-leading order. The QCD corrections are implemented in a new
$ep\rightarrow n$ jets event generator, MEPJET, which allows to analyze
arbitrary jet definition schemes and general cuts in terms of parton
4-momenta. First results are presented for the JADE, the cone and the $k_T$
schemes. For the $W$-scheme, disagreement with previous results and large
radiative corrections and recombination scheme ambiguties are traced to a
common origin.
