Domain Zone File Processor Needed

[DomainEmpire.com]

I'm looking for a good software to work on .Com zone files (extracting domains containing specific keywords/dns etc ...).

I found "Domain Zone Processor" no longer supported by the developer and even the demo version isn't working properly with me.

Please, PM if you can recommend a valid product or if you've "Domain Zone Processor" because I'd like to buy a license and to clarify what I'm doing of wrong with it considering it extract domains not related to the entered keywords