Thank you for the clarification.
The Viewer is built for the 64-bit systems since it's also possible for the 64-bit systems to run applications built for the 32-bit systems. Unfortunately, it's not possible to run the 64-bit applications on the 32-bit systems. Sorry for the inconvenience.
However, we might release a separate Viewer built for 32-bit based systems in the future.
Please let us know if you have more questions.