Java Dynamic DNS Client. Platform independent. Runs as application or demon. Supports ZoneEdit, Enom, ChangeIP, DynDNS.org, dhis.org. Simple to handle. Management per JMX and Ajax web interface. Mail Notification. Free accessibility monitoring w. JXTA P2
C# DNS Client Library (100% managed code). Query domains to get MX records, CNAME and Address resource records from your application. All common DNS query types supported. Supports user-defined servers.