Help and Support Center in Microsoft Windows XP and Windows Server 2003 SP1 does not properly validate HCP URLs, which allows remote attackers to execute arbitrary code, as demonstrated using certain hcp:// URLs that access the DVD Upgrade capability (dvdupgrd.htm).
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1032
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1008
https://exchange.xforce.ibmcloud.com/vulnerabilities/16095
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2004/ms04-015
http://www.kb.cert.org/vuls/id/484814
http://www.exploitlabs.com/files/advisories/EXPL-A-2004-001-helpctr.txt