From WineX via BoingBoing:

DO NOT ATTEMPT TO COOK A WHOLE FISH!

  1. Place fish packets on the top rack.
  2. Add dirty dishes and lemon-scented soap. This optional step is not

    recommended for novices. However, as long as the salmon’s tightly

    sealed in its aluminum foil packet, it won’t absorb any soapy taste or

    smell.

  3. Set dishwasher to the “normal” cycle. Modern dishwashers

    have “economy” and “cool dry” settings, which are undesirable since

    they conserve heat. However, on the other end of the spectrum, the

    “pots and pans” setting tends to overcook the fish.

  4. Run salmon through the entire wash-and-dry cycle — approximately 50 minutes for most models.
  5. When cycle’s complete, take salmon out, discard foil, place

    one fillet on each plate and spoon a generous serving of dill sauce on

    top.

For instructions on how to prepare the fish packets, and a recipe for flavoring your poached aqua-hack filets, check out the complete article.