This indicates a possible attempt to exploit a Code Execution vulnerability in the Windows Media Player ActiveX control.
The vulnerability can be exploited through misuse of multiple insecure methods. It may allow remote attackers to execute arbitrary code in the context of the application using the affected ActiveX control. Failed exploit attempts will likely cause the program to crash, resulting in a Denial of Service condition.
Windows Media player version 9
Windows Media player version 11
System Compromise: Remote attackers can gain control of vulnerable systems.
Set the kill bit for the following CLSID: