Windows 2000 DNS currently supports the following Request for Comments documents ( RFCs):
1034 "Domain Names - Concepts and Facilities"                              1035 "Domain Names - Implementation and Specification"                              1123 "Requirements for Internet Hosts -- Application and Support"                              1183 "New DNS RR Definitions"                              1886 "DNS Extensions to Support IP Version 6"                              1995 "Incremental Zone Transfer in DNS"                              1996 "A Mechanism for Prompt Notification of Zone Changes (DNS Notify)"                              2136 "Dynamic Updates in the Domain Name System (DNS UPDATE)"                              2181 "Clarifications to the DNS Specification"                              2308 "Negative Caching of DNS Queries (DNS NCACHE)"                              2782 "A DNS RR for Specifying the Location of Services (DNS SRV)"                              2930 "Secret Key Establishment for DNS (TKEY RR)"
Only partial support is offered for the following RFCs:
2535 "Domain Name System Security Extensions"                              2671 "Extension Mechanisms for DNS (EDNS0)"                              2845 "Secret Key Transaction Authentication for DNS (TSIG)"