Systems Management Server 2003 Service Pack 2 Upgrade
Microsoft Systems Management Server (SMS) 2003 Service Pack 2 (SP2) is primarily a rollup of a number of fixes for SMS 2003, but also introduces some changes to the supported configurations and broadens the configurations allowed. SMS 2003 SP2 also includes incremental improvements to usability, security, and performance.
Important:If you are planning to install the Inventory Tool for Microsoft Updates after you have upgraded your site to SMS 2003 SP2, then you must use the version that is designed for SP2. That version is included with SP2, but not installed by default. You can also download it separately from the link below.
What's New and New SMS Client System Requirements
SMS 2003 SP2