Pokemon White 2 problems on emulator

i got pokemon white 2 but it wont work on my emulator i got desmmune
anybody else had this problem?if not can u tell me what settings and emulator work best pleasethanks a bunchHirokaski of VoiceWorld

im using the desmume and the rom (AP patched)works fine .if you haven't patched it,
then use the DS scene Rom tool and export it .

so what are the codes pokemon white 2?