I've installed on my machine (Win2000) an Oracle 9i client, to see my Oracle 8i Server. Then, I've un-installed that client, using the oracle installer, to install the Oracle 8i client. But it is not possible, now! When I insert the CD, I can see the first screen, but when I select to install the product, the screen goes down and nothing else happen...
There's nothing wrong with Oracle on a P4 but there is a problem with the Java Runtime Environment on P4's. The Oracle installer is Java based and hence some people encounter installation problems. It's well documented on the web - do a google for symcjit.dll / oracle and you'll find it and the workarounds.
In fact, this question arises so much I've done this....
Thank to everybody has helped me to find the solution. It was the P4 problem, I resolved everything copying my installation CD on disk and renaming the symcjit.dll file in .old file. After this installation worked!