Scuzzy will for sure add some input here but after having vista for a year now the one thing i can tell you that will take a lot of the headaches out of putting AH on a vista machine is when you first install the game on your system install it as the Administrator! First open I.E. using run under administator, log on to AH and download the file, then close I.E.. Then open the file once again running under administrator and install it. When i first installed AH i had all kinds of problems, but once i installed it as administrator i haven't had any major issues at all. I know scuzzy has said it before but take it from me it's going to save you a lot of frustration if you do it right the first time.