Windows 2000 Service Pack 3 (SP3) provides the latest updates to the Windows 2000 family of operating systems. These updates are a collection of fixes in the following areas: application compatibility, operating system reliability, security, and setup. Windows 2000 SP3 includes the updates contained in Windows 2000 Service Pack 1 (SP1), Windows 2000 Service Pack 2 (SP2) and Windows 2000 Security Rollup Package 1. Windows 2000 SP3 is a recommended upgrade. Windows 2000 SP3 includes Windows Installer 2.0 please see the Deployment Guide for more information. To determine whether to install Windows 2000 SP3, Microsoft recommends that customers review the Windows 2000 SP3 documentation found under Learn More. Windows 2000 Service Pack 3