DISCLAIMER: I know this question is old, but it is one of the best Google search results where "download 32-bit IBM JRE for Windows". Therefore, I submit my answer if it can help others.
PREREQUISITES: IBMid login for use in the IBM site support section.
If you have an IBM support account, you can download Fixpak 9 for IBM 8.5.5.9: WebSphere Application Server V8.5.5. Before downloading, make sure you read the IBM terms and conditions. IANAL.
This package is dated February 25, 2016.
It is available at this URL: http://www-01.ibm.com/support/docview.wss?uid=swg24041819#SDK80
Scroll down to "IBM WebSphere SDK Java Technology Edition V8.0 for Full Profile and Freedom"
and you will find Windows: 8.0.2.10-WS-IBMWASJAVA-Win.zip By clicking on this link you will see the IBMid page to identify yourself, and then you can download this "300-MB hairball" (Scott McNeally dixit). 8.0.2.10-WS-IBMWASJAVA-Win.zip file.
When you unpack this 8.0.2.10-WS-IBMWASJAVA-Win.zip hairball, you will find a 32-bit JRE in the form of a file called com.ibm.websphere.jdk8.32bit.jre_003_windows.x8632_x_8.0.2010.201602250020.zip it is embedded in \ native subfolder of the ZIP archive.
Hope this helps
aissacf
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