Managing DNS on Multiple Windows Servers

Hi

We currently have 3 Windows 2003 Name servers. Now when ever we add a domain or need to make a change to something like the MX records, I have to TS onto each server and make the changes 3 times in the DNS Management Console.

Does anyone know of a way to make the same changes on all 3 servers without having to type them in manually? I would prefer a free software tool or maybe some scripts.

I have tried googling but haven’t come up with anything other than a few commercial pieces of software.

Thanks in advance for your help.