This document provides information about installing Windows XP Service Pack 3 (SP3). Both this document and the installation screens will guide you through. If you are running Windows 7 or Windows Server 2008 and are receiving the message, "Windows XP SP3 or Windows Vista SP1 is required" when trying. Mar 2, 2017 Hi, I'm pretty new with all the Free SSL and the manual installation of certificates. I used the automatic Dreamhost SSL certificates that comes. Windows XP is a personal computer operating system that was produced by Microsoft as part of the Windows NT family.