i dont think so
my suggestion is to release it - as freeware - and publish it on every downloadsite you know. i think this has the same effect, even more (cause they´re not only filesharers). additionaly you can release it also in a p2p-network.
on this way your company get publicity (at filesharers AND normal people).

and if you want to earn some money with the game, release it as time- or functional-limited shareware. that the customers can test it before they buy