Well he's 100% correct in his attempts to narrow down the problem, so maybe don't get so snippy with him. Folder structure matters, as does the name of the exe for many emulator applications, including model 2. As a matter of fact, it's so picky that the best/easiest way to get things to behave is to rename the exe back to it's original name (emulator.exe or emulator_multicpu.exe) and put the game roms in zip format in the roms folder included with the emulator... not in a separate directory somewhere else. You then launch the games with the rom name, no extension and no path, just like you do with mame.
So it'll be something like:
emulator.exe Daytona
And that's it.
You can add paths via uncommenting "Dir1" in the emulator.ini, but it seems to have issues with long paths with a lot of sub directories, spaces and the like... or at least I sometimes run into problems I can't track down related to a particular path name. It's best just to do it as described above.