ADConnectionToUnbind: an ADCONNECTION_HANDLE ([MS-DTYP]
section 2.2.2)
to unbind.
This task executes as follows:
The server
invokes the "Performing an LDAP Unbind on an ADConnection" task ([MS-ADTS]
section 7.6.1.5)
with the TaskInputADConnection parameter set to ADConnectionToUnbind.