For security reasons, I am only posting selected information with fititious IP here.

Note that it used to work, and ORCL still works.

INIT.ORA

db_name = "orcl"
db_domain = nt3
instance_name = orcl
service_names = orcl.nt3

remote_login_passwordfile = exclusive
os_authent_prefix = ""

JOB_QUEUE_PROCESSES = 4
job_queue_interval = 60
open_links = 4

mts_dispatchers = "(protocol=TCP)"
mts_servers = 1
mts_max_servers = 10
compatible = 8.1.6.1.0

LISTENER.ORA

LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 111.111.111.11)(PORT = 1521))
)
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC4))
)
)
)

SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = d:\oracle\orant)
(PROGRAM = extproc)
)
(SID_DESC =
(GLOBAL_DBNAME = orcl.nt3)
(ORACLE_HOME = d:\oracle\orant)
(SID_NAME = orcl)
)
)

TNSNAMES.ORA

INST1_HTTP =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = nt3)(PORT = 1521))
)
(CONNECT_DATA =
(SERVER = SHARED)
(SERVICE_NAME = orcl.nt3)
(PRESENTATION = http://admin)
)
)

EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC4))
)
(CONNECT_DATA =
(SID = PLSExtProc)
(PRESENTATION = RO)
)
)

ORCL =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 111.111.111.11)(PORT = 1521))
)
(CONNECT_DATA =
(SRVR = DEDICATED)
(SERVICE_NAME = orcl.NT3)
)
)

NETORCL =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 111.111.111.11)(PORT = 1521))
)
(CONNECT_DATA =
(SRVR = SHARED)
(SERVICE_NAME = orcl.NT3)
)
)