I've got a HP Pavilion Entertainment PC Laptop running Windows Vista 32bit. I use Virtual Vinyl 5 with two Numark HDX's to control it. I've been using it for a while now and I think I got a pretty good grasp on it. Although, I must admit, the program is a bit finicky when it comes to the timecode and the reliability leaves something to be desired. Mine locks up on my on occasion and I have to restart. Good thing I have my HDXs as backup.