Add or Remove Programs entry for Security Update for Windows Media Player 9 (KB911565). This update fixes a remote code execution vulnerability in Windows Media Player 9.

The vulnerability description is:

"If a user is logged on with administrative user rights, an attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less affected than users who operate with administrative user rights."