TNS Listener suddenly won't start

Question

I have a database (10gR2) that has been running for a couple of years, but all of a sudden I couldn't get to it. Then, when I went to that server and tried to start the service it wouldn't start. The machine is a Dell running Server2003 R2. The service error says:
The Oracle[instance] TNSListener service on Local Computer started and then stopped. Some services stop automatically if they have no work to do, for example, the Performance Logs and Alerts service.
Anyone ever seen this one before?

Answer 1

Here are the results of lsnrctl status
LSNRCTL for 32-bit Windows: Version 10.2.0.1.0 - Production on 30-JAN-2012 11:49:40
Copyright (c) 1991, 2005, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1)))
TNS-12541: TNS:no listener
TNS-12560: TNS:protocol adapter error
TNS-00511: No listener
32-bit Windows Error: 2: No such file or directory
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=armsbuild.caci.com)(PORT=1521)))
TNS-12541: TNS:no listener
TNS-12560: TNS:protocol adapter error
TNS-00511: No listener
32-bit Windows Error: 61: Unknown error
The log entry has this:
TNSLSNR for 32-bit Windows: Version 10.2.0.1.0 - Production on 30-JAN-2012 11:19:01
Copyright (c) 1991, 2005, Oracle. All rights reserved.
System parameter file is C:\oracle\product\10.2.0\db_1\network\admin\listener.ora
Log messages written to C:\oracle\product\10.2.0\db_1\network\log\listener.log
Trace information written to C:\oracle\product\10.2.0\db_1\network\trace\listener.trc
Trace level is currently 0
Started with pid=492
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC1ipc)))
Error listening on: (ADDRESS=(PROTOCOL=tcp)(HOST=127.0.0.1)(PARTIAL=yes)(QUEUESIZE=1))
No longer listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC1ipc)))
TNS-12560: TNS:protocol adapter error
TNS-00583: Valid node checking: unable to parse configuration parameters