

When asked why Microsoft is even bothering to release this update, considering that Vista is the newer OS, Windows proponent Paul Thurrott, on his website SuperSite for Windows, which tracks Microsoft releases, cites customer satisfaction with the earlier OS, particularly its relative security, stability and reliability. Additionally, he said, some of the "optional" updates released since SP2 will be installed with SP3 (MMC 3.0, MXSXML6, WPA2 support, etc.). Another upgrade included in this pack retrofits some Vista functionality into XP, namely in the area of network access protection, black-hole router detection, enhanced security for administrator and service policy entries and a kernel mode crypto driver, he wrote. However, you will not be able to go back to IE 6 after applying this service pack." For those using the latest generation, IE 8 (in beta), an uninstall will be needed before applying the service pack, and then a reinstall of IE 8, Bambenek added. If you are an IE 7 user, it will update your IE 7 installation. "You will continue to be able to upgrade to IE 7 as an option. "If you are an IE 6 user, SP3 will simply update your IE 6 installation," he said. But, he points out that the update affects Internet Explorer (IE) users. University of Illinois researcher John Bambenek, for example, on the website of the SANS Internet Storm Center, said that for the most part, the release is simply a bundle of all the updates since SP2. This update also includes a small number of new functionalities, which do not significantly change customers' experience with the operating system." Many see the release as a minor tidying up. On its downloads site, Microsoft said, "Windows XP Service Pack 3 (SP3) includes all previously released updates for the operating system.

Microsoft is also resuming automatic distribution of Windows Vista SP1. A Microsoft spokesperson informed that yesterday Microsoft released Windows XP SP3 to Windows Update and Microsoft Download Center.
