Article may be confusing, plus the link didn't open.
Here's another link about the Office/Lync zero-day exploit:
http://www.tomsguide.com/us/microsoft-office-zero-day,news-17830.html
Breakdown:
- All versions of Windows are affected for Office 2003 and 2007 users
- Windows XP affected only for Office 2010 users, but not on Windows 7 or higher.
Because, Vista is vulnerable with or without Office installed. Other Windows versions are safe, if you do not have Office installed.
However, here's Microsoft FixIt for Windows Vista SP2/Server 2008 users:
https://support.microsoft.com/kb/2896666
Or use EMET.