Hi.

You need to delete the Oracle entries under the following path in the registry:

\\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services

There will be a few of them all begining with Oracle...

You should also consider removing the whole of:

\\HKEY_LOCAL_MACHINE\SOFTWARE\ORACLE

Once this is done you will need to reboot your machine and they should all be gone. You can then delete the remaining files on your filesystem and you're pretty clean.

Remember, any DLLs will still be registered unless you did an uninstall using the Universal Installer. That shouldn't matter as they are not being used, and if you reinstall they will be replaced.

Also note that manually messing around with the registry can be dangerous. Do it at your own risk.

Cheers