Whic free supports whois scanning for domain zones in .com, .ru, .su etc. The software checks a whois parameters: domain status, person, organization, email, registrar, created, expired, updated dates and others.
It's supports mass checking for availibility and others whois datas and is free for COM, RU, SU (and some other russian domain zone) domain names lists. Whic free is bulk whois client and is convenient for managing large lists of domains. The software includes a full-featured domain name generator for all domain zones