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