On Windows 7 (or Vista) I use
Bulk Whois API Launched (2015/02/18 15:11)
Today, we are launching our new Bulk Whois API project. It offers JSON API to parsed WHOIS data for companies of any size. As the market leading RoboWhois project has been discontinued recently, we feel that we can offer a replacement for this great service.
We would like to invite you all, who are in need of a reliable source of either raw or parsed WHOIS data, to sign up with Bulk Whois API and start your free trial today. We do support large volume clients. Feel free to contact support if you have any special needs or you are interested to get a custom quote.