继续是给英语短文。
Microsoft（微软） works to continually
improve（改善） the
performance（性能）,
security（安全性）, and
stability（稳定性） of the Windows
operating system（操作系统）. As part of this effort, Microsoft
develops（开发）
updates（更新）,
fixes（补丁）, and other improvements that
address（定位）
issues（问题） reported by the company’s
customers（客户） and
partners（合作伙伴）. To make it easier for customers to get these updates and
enhancements（增强）, Microsoft
periodically（定期地）
combines（组合） them into a single
package（安装包）, and makes that package
available（可用的） for all Windows customers. These packages are called
service packs（服务包）.
Windows XP Service Pack 3 (SP3) includes
previously（先前）
released（发布） Windows XP updates, including
security updates（安全更新） and
hotfixes（漏洞补丁程序）. It also includes
select out-of-band releases（独占式补丁）, and a small number of new enhancements, which do not
significantly（可观地） change customers’
experience（体验） with the operating system.
Windows XP SP3 provides a new
baseline（准线） for customers still
deploying（部署） Windows XP. For customers with existing Windows XP installations, Windows XP SP3 fills
gaps（差距） in the updates they might have missed—for example, by
declining（拒绝） individual updates when using
Automatic（自动） Updates, and updates not available through Windows Update.
Developing service packs for operating systems like Windows XP, which is nearing its
end-of-sales（停止销售）
period（阶段）, is a
standard（标准的） practice, and Microsoft does this for the
convenience（方便） of its customers and partners. Users no longer need to install three to four years worth of updates when installing Windows XP, and partners have a new, updated baseline on which to test their
applications（应用程序） and
hardware（硬件）. This
white paper（白皮书） describes what is new in Windows XP SP3 and provides an
overview（概述） of how customers can deploy the service pack.
[原文节选自Microsoft Windows XP SP3 White Paper，此部分为概述，其余段落省略。]
