现象：执行setup，不出现安装界面。

http://support.intel.com/support/processors/pentium4/sb/CS-007990.htm

这个似乎是针对8i的，但是9i也有同样的问题：

If you are installing into Windows* 2000, one workaround recommendation by Oracle for this problem is:

Install the latest Windows* 2000 Service Pack patch †
Create a temporary directory on your Intel Pentium® 4 processor server (e.g. TEMP).
Copy the contents of the Oracle* Server CD to the temporary directory created in step 2.
Search the directory structure created in step 2 for the existence of the filename SYMCJIT.DLL.
Rename each copy of the SYMCJIT.DLL to SYMCJIT.OLD.
Run the SETUP.EXE from the TEMPinstallwin32 directory and install Oracle 8.1.x.

记下来，省得以后找。