Veritas Backup Exec 8.5 and earlier requires that the "RestrictAnonymous" registry key for Microsoft Exchange 2000 must be set to 0, which enables anonymous listing of the SAM database and shares.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1036
https://exchange.xforce.ibmcloud.com/vulnerabilities/10093
http://seer.support.veritas.com/docs/238618.htm