3.1.3 Initialization
When the administrative tool plug-in starts up, it gets a scoped GPO path from the Group Policy: Core Protocol in the following form:
CN=<GPO_GUID>, CN=Policies, CN=System, DC=<x>, DC=<y>, DC=<z>
where <x>, <y>, <z> is the FQDN of the domain/LDAP server, and <GPO_GUID> is the curly braced GUID string containing the GUID of the GPO that is being queried or updated.
To use LDAP, the administrative tool plug-in invokes the Initializing an ADConnection task ([MS-ADTS] section 7.6.1.1) with the following parameters, and stores the new TaskReturnADConnection returned from the task as the ADConnection handle ADM element (section 3.1.1):
TaskInputTargetName: MAY be specified by the administrator, or if not specified, NULL
TaskInputPortNumber: 389
The administrative tool plug-in MUST attempt to use LDAP to retrieve any existing printer connection settings from the scoped GPO path, as specified in section 3.1.5.3.