Microsoft has released a 32-bit version of the Microsoft Exchange Server 2007 Management Tools.
Exchange Server 2007 is a native 64-bit application that includes 64-bit management tools. You can use the management tools to administer your Exchange Server environment remotely. If your remote computer is running a 32-bit operating system, you will need to download the 32-bit management tools.
The Exchange management tools include the Exchange Management Console (EMC), the Exchange Management Shell (EMS), the Exchange Help file, the Microsoft Exchange Best Practices Analyzer Tool, and the Exchange Troubleshooting Assistant Tool.
Get the 32-bit Exchange management tools here.