VOL (short for Volume Licensing for Organizations, AKA: VL), any Windows OS setup CD/DVD or image file with “VOL” word, that indicates it is one of the licensed Windows copies. Windows XP Pro Product Keys // Edition Their biggest advantage is your Windows XP will be activated after using these CD-KEYs to complete installation. The following CD-KEYs are official and original from Microsoft, mainly used for Windows XP Professional Service Pack 2/3 VOL/VLK system images which are the easiest ones to find on the Internet. Therefore XP’s product keys may be necessary even now, and AppNee provided you with the most comprehensive Windows XP product keys here, just in order to provide some convenience. Although Microsoft does not support Windows XP updates any more, I’m sure there are still many users using it due to their personal habits or job demands.