Topic Last Modified: 2007-08-13

Microsoft Exchange Server 2007 setup displayed this warning because you are installing the 32-bit version of Microsoft Exchange.

Exchange 2007 is available in two platform versions: one platform version (the 64-bit version) is for live production environments and the other platform version (the 32-bit version) is for non-production environments (such as labs, training facilities, demo, and evaluation environments). Only the 64-bit version can be purchased because you cannot run 32-bit Exchange 2007 servers in production.

There are two exceptions with respect to production and non-production use of the 32-bit platform because Microsoft does allow minimal supported use of the 32-bit version in production environments. Specifically:

All other uses of the 32-bit version of Exchange 2007 in production environments are unsupported.

To download the 32-bit version of the Exchange Management Tools, see "Microsoft Exchange Server 2007 Management Tools (32-Bit)" ( For more information about Exchange 2007 platform versions, see "Exchange Server 2007: Platforms, Editions, and Versions" ( in the Exchange 2007 product documentation.