First, unpack the MAME.zip file into a folder (ex. X:\MAME), next thing to do is to download ROM's. You just make a subfolder to your MAME-folder with the same name as the ZIP-file. (important!) (ex. X:\MAME\SCRAMBLE , for the zip-file "scramble.zip") To run the game, Exit to DOS, got to your MAME-folder and type "MAME XXXXXX", where the XXXXXX is the folder name of the game. (ex. MAME SCRAMBLE , starts SCRAMBLE). If the game doesn't work, you probably will need to unzip the wac_font.zip into the folder with the game that doesn't work. And finally, read the readme-file for questions.