M$ reportedly paid $400,000 as a marketing fee (Score 1)

I believe that in the United States, assuming that the above report is true, it would be easier to prove dumping as the marketing fee would make the cost of the provided software negative $23 per unit. The marketing fee is a thin disguise for providing the units at negative cost, even if the charge per unit is the developing country (anticompetitive) price of $10 per unit that was supplied in Thailand and the like.