Hien, I would try to uninstall Oracle and reinstall it. It is possible that teh networking component was not installed properly. Below is an extract from Oracle 8i iInstallation Guide - release 3 (8.1.7) for NT on how to manually remove all Oracle components from NT.
Long To remove all Oracle components from a computer on Windows NT: -------------------------------------------------------------------------------- Caution: These instructions remove all Oracle components, services, and registry entries from your computer. In addition, any database files under ORACLE_BASE\ORADATA\DB_NAME are also removed. Exercise extreme care when removing registry entries. Removing incorrect entries can break your system. -------------------------------------------------------------------------------- Ensure you are logged in as a user with Administrator privileges. Stop all Oracle services (if any are running): Choose Start > Settings > Control Panel > Services. If any Oracle services (their names begin with Oracle) exist and have the status Started, select the service and choose Stop. Choose Close to exit the Services window. Start the registry at the MS-DOS command prompt: C:\> REGEDT32 Go to HKEY_CLASSES_ROOT. Delete any key that starts with Oracle or ORCL. Go to HKEY_LOCAL_MACHINE\SOFTWARE\ORACLE. Delete the ORACLE key. Delete the Oracle ODBC Driver key under HKEY_LOCAL_MACHINE\SOFTWARE\ODBC\ODBCINST.INI. Go to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services and remove all keys under here that begin with ORACLE. Go to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services \EventLog\Application, and remove all keys under here that begin with ORACLE. Go to HKEY_CURRENT_USER\SOFTWARE\ORACLE. Delete keys that start with Oracle or ORCL (if any exist). Go to HKEY_CURRENT_USER\SOFTWARE\ODBC\ODBCINST.INI. Delete any Oracle keys (if any exist). Close the registry. Go to Start > Settings > Control Panel > System > Environment tab. Choose the system variable path and modify the Path variable. Remove any Oracle entries from the path. For example, if JRE was installed by Oracle, remove the %ORACLE_HOME%\BIN path and the JRE path. You may see a path similar to this one: C:\ORACLE\ORA81\BIN;G:\PROGRAM FILES\ORACLE\JRE\1.1.7\BIN Exit the Control Panel. Go to SYSTEM_DRIVE:\WINNT\PROFILES\ALL USERS\START MENU\PROGRAMS. Delete the following icons: Oracle - HOME_NAME Oracle Installation Products where HOME_NAME is the previous Oracle home name. Delete SYSTEM_DRIVE:\Program Files\Oracle through Windows NT Explorer. Delete all ORACLE_BASE directories on your hard drive. Reboot your computer. -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
