http://www.pdarcade.com/modules.php?name=S...cle&artid=102#3

For those who's interesting in playing gamboy on their pocket pc while working (or just plain bored) that link right there will save you from boredom.  So far that's the only one that works well but the drawback is the rate in % switches (150 to 50) but it's still pretty fast.  The roms is your regular gba roms.  Have fun  .  Ooops, the emulator is Pocket advance by the way.