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[How To] How to switch IIS to 32-bit mode and vice versa on x64 Windows architecture

Article ID: 2131 
Last Review: Aug,30 2007
APPLIES TO:
  • Virtuozzo for Windows 3.5.1
  • Plesk for Windows
  • Virtuozzo for Windows 3.5.1 SP1
  • Virtuozzo Containers for Windows 4.0

RESOLUTION

To switch IIS mode it is necessary to perform the following commands:

32-bit mode:

cscript %SYSTEMDRIVE%\inetpub\adminscripts\adsutil.vbs SET W3SVC/AppPools/Enable32bitAppOnWin64 1
64-bit mode:

cscript %SYSTEMDRIVE%\inetpub\adminscripts\adsutil.vbs SET W3SVC/AppPools/Enable32bitAppOnWin64 0
Note: Do not forget to reconfigure ASP.Net settings as well.

Additional information

See also Does Plesk work on x64 architecture article.

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