Optional method returning a collection of Active Directory objects describing additional qualifiers of this property.
HRESULT IADsProperty::Qualifiers(
  IADsCollection ** ppQualifiers  //Collection of additional 
                                  // constraints
);
 This method supports the standard return values E_FAIL and E_UNEXPECTED, as well as the following:
Active Directory implementations call this method when determining if there are any provider-specific constraints on the uses or values of this property.
Return E_NOTIMPL if you do not support this interface.
  Windows NT:  Use version 4.0 and later. 
  Windows CE:  Unsupported.
  Header: Declared in iads.h.