I have gone through many posts in this matter and the more I learn more is my confusion. Hence I request some guidance from you good people. I want to install XP Pro Sp3 in my new harddisk. I have downloaded 2 versions. Eng.OEM and VL. I also downloaded Antiwat 3.5.1. I also have the key. All thanks to MDL. But going through the recent posts I understand that there is a little bit of hesitancy in using Antiwat. My first query is which one should I install? OEM or VL? Second query is how do I make my installation genuine? I do not want to use Oembios Changer. If I have to use Antiwat, do I have to except it in my avs when I install the avs? Please advise. Thanks.""