I've got a requirement to populate a GroupWise 2014 system with around 1,000 users for training purposes.

What is the best method to mass create these accounts from a CSV file? Is there something on the command line or is JRB still the prefered weapon of choice in these situations?

These would be "stand alone" users and not linked to e-directory or Active Directory (ie not LDAP imports).

Many thanks in advance,