Affected Real Player files are included with IE (hence the
REAL PLAYER/IE) it's just a pain finding specific past alerts from MS. The ActiveX flaw was closed by MS at the same time and a patch would have shipped on the second Tuesday of November.
Also, a number of people said they didn't have Real Player, only to find they had forgotten that they had installed it long ago.
If memory serves, this is the IE patch
Microsoft Security Bulletin MS07-061 – Critical: Vulnerability in Windows URI Handling Could Allow Remote Code Execution (943460)