TABLE 2: Values of the ObjectType and InheritedObjectType Properties
ACE	AceFlags	Flags	ObjectType	InheritedObjectType
Permissions	Property	Property	Property	Property
Permissions apply to the entire object	Applies to object; child objects don't inherit	Neither	Null (ignored but still set)	Null (ignored but still set)
Permissions apply to a specific attribute of the object	Applies to object; child objects don't inherit	ObjectType only	The schemaIDGUID of the AttributeSchema object that defines the attribute in the schema	Null (ignored but still set)
Permissions apply to all child objects	Doesn't apply to object; child objects don't inherit	ObjectType only	Null*	Null (ignored but still set)
Permissions apply to child objects that are of a specific class	Doesn't apply to object; child objects don't inherit	ObjectType only	The schemaIDGUID of the ClassSchema object that defines the class in the schema	Null (ignored but still set)
Permissions apply to a specific attribute of specific child objects	Doesn't apply to object; child objects don't inherit	ObjectType and InheritedObjectType	The schemaIDGUID of the AttributeSchema object that defines the attribute in the schema	The schemaIDGUID of the ClassSchema object that defines the class in the schema
* Setting Null for this ObjectType field signifies that this ACE applies to all child objects; this instance is the only time that you don't use a GUID in this property. The system understands that a Null value for a required ObjectType field is the same as providing the GUIDs for every possible child object.