Same problem with Pokemon Platinum. Im using Win7 and Desmu 0.9.9. Pokegen's working fine with Pokemon White, HeartGold & Black 2. Everytime I saved my edit in Platinum, in my states folder, there is a file like this: "PokeGen.dmp", and also like this: "Pokemon Platinum.ds1.bak". I know that .bak file is the pokegen edit file, but I dont know what .dmp file is?