Library /sys$common/syshlp/tcpip$nslookup_help.hlb set, class  *Conan The Librarian (sorry for the slow response - running on an old VAX)

   Changes the class of information returned from a query.

   FORMAT:
    set class=value

   Allowed values are:

        IN        Internet

        HS        Hesiod

        ANY       any

   DEFAULT:
    set class=IN