Developer's DescriptionBy MicrosoftUpdate your Microsoft Office Visio 2003.Visio 2003 Service Pack 1 contains significant security enhancements, in addition to stability and performance improvements. Visio 2003 Service Pack 1 provides the latest updates to Microsoft Office Visio 2003. Some of the fixes included with Service Pack 1 (SP1) have been previously released as separate updates. This service pack combines them into one update. This version is the first release on CNET Download.com.