this is the listener file.
# listener.ora Network Configuration File:
# C:\oracle\product\10.1.0\network\admin\listener.ora
# Generated by Oracle configuration tools.

SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = C:\oracle\product\10.1.0)
(PROGRAM = extproc)
)
(SID_DESC =
(GLOBAL_DBNAME = ORCL)
(ORACLE_HOME = C:\oracle\product\10.1.0)
(SID_NAME = ORCL)
)
)

LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC))
)
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = BNG-GJ1478)(PORT = 1521))
)
)
)



the error message shown while trying to start listener is

LSNRCTL for 32-bit Windows: Version 10.1.0.2.0 - Production on 09-MAY-2006 08:46
:57

Copyright (c) 1991, 2004, Oracle. All rights reserved.

Welcome to LSNRCTL, type "help" for information.

LSNRCTL> start
Starting tnslsnr: please wait...

TNSLSNR for 32-bit Windows: Version 10.1.0.2.0 - Production
System parameter file is C:\oracle\product\10.1.0\db_1\network\admin\listener.or
a
Log messages written to C:\oracle\product\10.1.0\db_1\network\log\listener.log
Error listening on: (ADDRESS=(PROTOCOL=tcp)(HOST=127.0.0.1)(PARTIAL=yes)(QUEUESI
ZE=1))
No longer listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\E
XTPROCipc)))