操作系统：win7 64位
Oracle：11gR2 32位
但是在alert log 里不断的出现如下错误：
Mon Feb 06 14:38:22 2012
OER 7451 in Load Indicator : Error Code =OSD-04500: illegal option specified
O/S-Error: (OS 1) 函数不正确。!
OER 7451 in Load Indicator : Error Code =OSD-04500: illegal option specified
O/S-Error: (OS 1) 函数不正确。!
Mon Feb 06 14:38:32 2012
OER 7451 in Load Indicator : Error Code =OSD-04500: illegal option specified
O/S-Error: (OS 1) 函数不正确。!
OER 7451 in Load Indicator : Error Code =OSD-04500: illegal option specified
O/S-Error: (OS 1) 函数不正确。!
Mon Feb 06 14:38:42 2012
OER 7451 in Load Indicator : Error Code =OSD-04500: illegal option specified
O/S-Error: (OS 1) 函数不正确。!
OER 7451 in Load Indicator : Error Code =OSD-04500: illegal option specified
O/S-Error: (OS 1) 函数不正确。!
--根据统计来看，每10秒出现一次错误提示。
MOS 上对这个问题有解释，参考：
OER 7451 in Load Indicator : Error Code =OSD-04500: illegal option specified [ID 1060806.1]
--现象：
The following error repeats over and overin the database alert log immediately after startup.
OER 7451 in Load Indicator : Error Code = OSD-04500: illegal option specified
O/S-Error: (OS 1) Incorrect function. !
--原因：
Installed 32-bit Oracle database softwareon a 64-bit MS Windows OS which is not supported. Here is excerpt from Note:740926.1 on this subject.
Note: For the Database software, you can ONLY install the x64 version on MSWindows (x64).
You can NOT install the32-bit version Database software on MS Windows (x64).
--不能在64位的windows 上安装32位的Oracle。
--解决方法
Install 32-bit Oracle database softwareonly on 32-bit MS Windows OS.
--重新安装对应版本的Oracle 软件
查看Oracle 是32位还是64位的方法： www.2cto.com/database/201109/105845.html