I Checked, the Log File and i found this

TNSLSNR for 32-bit Windows: Version 2.3.4.0.0 - Production on 06-FEB-01 17:05:33

Copyright (c) Oracle Corporation 1994. All rights reserved.

System parameter file is d:\orant\network\admin\listener.ora
Log messages written to d:\orant\network\log\listener.log
Trace information written to d:\orant\network\trace\listener.trc
Trace level is currently 0

Listening on: (ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\oracle.worldipc))
Listening on: (ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\ORCLipc))
TIMESTAMP * CONNECT DATA [* PROTOCOL INFO] * EVENT [* SID] * RETURN CODE

This Listener start 06-FEB and yestarday I Restart.

what do you mean about that?