Microsoft is offering this free download to allow you to use Office 2007 to save files as a PDF or XPS file. It works with any of the following Office apps:

• Microsoft Office Access 2007
• Microsoft Office Excel 2007
• Microsoft Office InfoPath 2007
• Microsoft Office OneNote 2007
• Microsoft Office PowerPoint 2007
• Microsoft Office Publisher 2007
• Microsoft Office Visio 2007
• Microsoft Office Word 2007

Thanks for the tip, Namoskar!