У меня на win2k работакет так:
+ еще надо создать сервис для второго листененра

LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
)
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 10.3.0.2)(PORT = 1521))
)
)
)

SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = BACK)
(ORACLE_HOME = C:\Oracle\Ora81)
(SID_NAME = BACK)
)
)





LISTENER3 =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
)
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.2)(PORT = 1526))
)
)
)

SID_LIST_LISTENER3 =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = BACK)
(ORACLE_HOME = C:\Oracle\Ora81)
(SID_NAME = BACK)
)
)