> 1) Second choice of making new objectClass STRUCTURAL is fine for me , > but will there be any restrictions for new STRUCTURAL object classes > to be created from any parent (for instance, organizationalUnit)
Only that they be STRUCTURAL. > And from this, new STRUCTURAL class, if I derive one more hierarchy > down , will there be any restrictions for that grand child object > class. None beyond what apply to all object classes. Proprietary/custom schema is treated no differently than standard schema. > 2) Can I know why is that restriction that AUXILIARY cannot be derived > from STRUCTURAL? Because it makes no sense. Look-up the meanings of AUXILIARY and STRUCTURAL. -- Adam Tauno Williams, Network & Systems Administrator Consultant - http://www.whitemiceconsulting.com Developer - http://www.opengroupware.org