There are no prerequisites for installing this security update.
Security update replacement information
This security update replaces the following security update:
969737 MS09-021: Description of the security update for Excel Services in SharePoint Server 2007: June 9, 2009
To remove this security update, use the Add or Remove Programs item, or use the Programs and Features item in Control Panel.
The English (United States) version of this security update has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.
Security update for Excel Services in Microsoft Office SharePoint Server 2007 (KB979439), 32-bit editions
Security update for Excel Services in Microsoft Office SharePoint Server 2007 (KB979439), 64-bit editions