IIS is in 32-bit compatibility mode_IIS32BitMode
Applies to: Exchange Server
Topic Last Modified: 2012-06-05
The content in this topic hasn't been updated for Microsoft Exchange Server 2013. While it hasn't been updated yet, it may still be applicable to Exchange 2013. If you still need help, check out the community resources below.
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
Open a command prompt.
Type the following:
cscript c:\inetpub\adminscripts\adsutil.vbs SET /w3svc/AppPools/Enable32BitAppOnWin64 False