Office 2003 Service Pack 1 contains significant security enhancements, in addition to stability and performance improvements. Service Pack 1 (SP1) also includes many performance and feature enhancements to Microsoft Office InfoPath 2003.
Some of the fixes included with SP1 have been previously released as separate updates. This service pack combines them into one update.
Patches and updates
Service Pack 1
18396 KB - 73906 KB
Product page: here