IIS is in 32-bit compatibility mode_IIS32BitMode

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Applies to: Exchange Server 2013

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

Exchange 2007 requires that IIS is 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