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IIS is in 32-bit compatibility mode

[This topic is intended to address a specific issue called out by the Exchange Server Analyzer Tool. You should apply it only to systems that have had the Exchange Server Analyzer Tool run against them and are experiencing that specific issue. The Exchange Server Analyzer Tool, available as a free download, remotely collects configuration data from each server in the topology and automatically analyzes the data. The resulting report details important configuration issues, potential problems, and nondefault product settings. By following these recommendations, you can achieve better performance, scalability, reliability, and uptime. For more information about the tool or to download the latest versions, see "Microsoft Exchange Analyzers" at http://go.microsoft.com/fwlink/?linkid=34707.]  

Topic Last Modified: 2006-08-11

Microsoft® Exchange Server 2007 setup cannot continue because the Microsoft Internet Information Service (IIS) is running in 32-bit mode on this 64-bit computer.

Exchange 2007 requires that IIS be in full 64-bit mode when it runs on a 64-bit computer.

To resolve this issue, switch IIS to 64-bit mode, and then rerun Microsoft Exchange setup.

To switch IIS to 64-bit mode
  1. Open a command prompt.

  2. Type the following:

    cscript c:\inetpub\adminscripts\adsutil.vbs SET /w3svc/AppPools/Enable32BitAppOnWin64 False

  3. Press enter

 
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