Microsoft Windows Media Player 7 executes scripts in custom skin (.WMS) files, which could allow remote attackers to gain privileges via a skin that contains a malicious script, aka the ".WMS Script Execution" vulnerability.
https://exchange.xforce.ibmcloud.com/vulnerabilities/5575
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2000/ms00-090