EXPERT RESPONSE
Well, I can't solve your problem but I can direct you where to begin looking. First, look for the listener log in $ORACLE_HOME/network/log. This may tell you why the listener will not start. Also check the database alert log to ensure that the database is starting. Sometimes the service will tell you it started when in fact it never gets to the point of being open. Try to manually start the listener. Open a command prompt. Set the oracle home and then start the listener.
C:> set ORACLE_HOME=C:oracleora8i (whatever yours is) C:> lsnrctl start
If this fails you will have the errors that caused it to fail. You can use the listener control utility to start, stop or check the status of the listener.
C:> lsnrctl status
Hope that will at least get you to the point of getting the listener error message to tell you why it will not start.
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