On Windows 7 (or Vista) I use
DNS Zone Health Checker (2015/10/01 17:18)
We have released another useful tool called DNS Zone Health Checker, which is intended for all domain owners and domain administrators. This tool deeply analyzes your DNS records and name servers with over 200 rules in order to releveal potential problems that you might not even be aware of, but some of your visitors might be. IDN, DNSSEC and IPv6 are all supported by our DNS checker. As most of our tools, DNS checker is free to use, unless very extensive use is needed.