So, Lordmonkus, I don't know what I am doing wrong. I followed the tutorial link to a T and proceeded accordingly. I'm using mame64.exe, i have both bios files zipped in the mame roms directory and even moved the roms to the mame roms folder. Put the default command line in the associated platforms. Nothing pops up. I've then did this with the latest mess64.exe, again same instructions, only thing that popped up was a cmd box and disappeared within a millisecond. What am I doing wrong?