From Ultimate Conn-X-tion:
When using a DNS Server under Windows NT, hosting a large quantity of domain names, the zonefile folder tends to get a little out of hand, and rather unmanageable. DNS Utility, basically eases the process of editing and maintaining your zonefiles. It does this simply by opening the appropriate zonefile according to the domain name you have entered into the interface. You can also add new zonefiles, which will be created using a template file of your choice. A new feature in this version allows you to store up to 6 favorites, so you dont have to keep remembering the zonefile name for your in-arpa addresses.