DeSmuME

For those attempting to use DeSmuME to play Pokemon HeartGold/SoulSilver without the capacity to read and write the sourcecode, you may want to be informed that the DeSmuME development team is not modifying their code to support these releases.

We are not going to support these games. Don't waste time asking, it will only make us angry. We can't cope with the huge flood of noobs which we know is coming. If you can't make it work, then give up and go buy the cart.

Source: http://wiki.desmume.org/index.php?title=Faq#Why_can.27t_I_play_Pokemon_HeartGold_.2F_SoulSilver_.3F_Why_aren.27t_they_supported_.3F

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