Microsoft Excel 2000 for Windows
Microsoft Excel 2002 for Windows
Microsoft Excel 98 for Macintosh
Microsoft Excel 2001 for Macintosh
Microsoft PowerPoint 2000 for Windows
Microsoft PowerPoint 2002 for Windows
Microsoft PowerPoint 98 for Macintosh
Microsoft PowerPoint 2001 for Macintosh

Excel and PowerPoint have a macro security framework that controls the execution of macros and prevents macros from running automatically. Under this framework, any time a user opens a document the document is scanned for the presence of macros. If a document contains macros, the user is notified and asked if he wants to run the macros or the macros are disabled entirely, depending on the security setting. A flaw exists in the way macros are detected that can allow a malicious user to bypass macro checking. http://www.microsoft.com/technet....050.asp