Hello I wrote about the same problem few months ago. Unfortunately I didn't resolve it. Could anybody look at below link and tell me what I've made wrong, please. "active directory, bind9, windows dns - TOGETHER" http://groups.google.com/group/comp.protocols.dns.bind/browse_thread/thread/ 7aaa22fdf3e70e8a/4fe149988f518680?lnk=st&q=bind -- Best Regards