By default, the installation program detects the version of the operating system then installs the corresponding version of the Remote Loader. You can install both the 32-bit and 64-bit Remote Loader on a 64-bit operating system:
If you are upgrading a 32-bit Remote Loader installed on a 64-bit operating system, the process upgrades the 32-bit Remote Loader to the latest version and also installs the 64-bit Remote Loader.
If you choose to have both a 32-bit and a 64-bit Remote Loader on the same computer, the audit events are generated only with the 64-bit Remote Loader. If a 64-bit Remote Loader is installed before installing a 32-bit Remote Loader, the events are logged to the 32-bit cache.