This is the original Microsoft Windows XP Professional SP3 ISO (Volume License) including Microsoft updates till 14.04.2012 + SATA Drivers and Internet Explorer 8.
There's no serial needed during installation, the key is already inserted.
Windows Messenger, MSN Explorer and Internet Explorer 6 were removed
(Internet Explorer 8 added).
Link Download(jumbofiles) :
Download Windows XP Proffesional SP3 Integrated April 2012 + SATA DRIVER (560MB)