> Today I tried to set up MAMEUIFX and everytime i ever try to load a rom that is > correctly installed i get an error message saying "Multiple Arcade Machine Emulator > is no longer working". I have set it up before but i had to delete for reasons.
Your emulator is out of date. It was replaced by ARCADE http://arcade.mameworld.info/ Make sure you always have the latest version as we cannot properly support old stuff.
Also, when you ask an emulator question, you need to tell us what version of the emulator you are using.