message executeLdapQueryRequest
parts 
parameters
element dir:executeLdapQuery
used by 
Operation executeLdapQuery in PortType DirectoryService
source  
<wsdl:message name="executeLdapQueryRequest">
  <wsdl:part name="parameters" element="dir:executeLdapQuery"/>
</wsdl:message>

WSDL documentation generated by XMLSpy WSDL Editor http://www.altova.com/xmlspy