/sys$common/syshlp/helplib.hlb SHOW, LICENSE, Parameter  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 product-name

    Specifies the name or names of activated software product
    licenses to display. The asterisk (*) and the percent sign (%)
    wildcard characters are allowed. If you do not specify a product
    name, information is displayed about all active product name
    licenses. The product-name parameter is incompatible with the
    /UNIT_REQUIREMENTS qualifier.