Hi ,
I am getting following error when I try to config Net8 in 9i .
Can any one help? Why the Listener has n't been started ?


Initializing first test to use userid: scott, password: tiger
Attempting to connect using userid: scott
The test did not succeed.
ORA-12541: TNS:no listener


LISTENER.ORA
==============

LISTDWHG =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
)
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 172.16.4.155)(PORT = 1521))
)
)

SID_LIST_LISTDWHG =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = DWHG.WORLD)
(ORACLE_HOME = d:\ora9i)
(SID_NAME = DWHG)
)
(SID_DESC =
(PROGRAM = extproc)
(SID_NAME = PLSExtProc)
(ORACLE_HOME = d:\ora9i)
)

TNSNAMES.ORA
===============
DWHGORA.WORLD =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 172.16.4.155)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = DWHG)
)
)

SQLNET.ORA
===============

SQLNET.AUTHENTICATION_SERVICES= (NTS)
SQLNET.EXPIRE_TIME = 0

NAMES.DEFAULT_DOMAIN = WORLD
NAMES.DIRECTORY_PATH= (TNSNAMES, HOSTNAME)