Advmenu and nulldc

Hi,

Sorry if this is posted in the wrong section but was hoping someone maybe able to help in my quest to get nulldc running in advmenu frontend, i'm a bit lost with this frontend and have never used it before, i tried mame and that works like it should, am i supposed to generate a game list some how or does the frontend do this? nulldc shows up in the emulator menu with mame bit there's no game list, here's how i have it in the .rc file

emulator "nulldc" generic "c:\nulldc\nullDC_Win32_Release-NoTrace.exe" "%f"
emulator_roms "nulldc" "c:\nulldc\roms"
emulator_roms_filter "nulldc" *.bin"

Nulldc works fine outside of frontend

Any help would be great

Cheers