DNSCMD <dnsserver> /RecordAdd <zone> LowIP PTR <fqdn>
ex.
DNSCMD . /RecordAdd 1.10.in-addr.arpa 3.2 PTR server.mydomain.net
Detta skapar server.mydomain.net med ip 10.1.2.3 i zonen 1.10.in-addr.arpa
http://technet.microsoft.com/en-us/library/cc775703%28v=ws.10%29.aspx