Article ID: 1125, created on Oct 6, 2008, last review on May 10, 2014

  • Applies to:
  • Plesk for Windows

Resolution

The source of this problem is IIS, which works in 64-bit mode by default. The problems related to IIS functionality in 64-bit mode are described in the following article:

http://support.microsoft.com/?id=895976


IIS 6.0 supports both the 32-bit mode and the 64-bit mode. However, IIS 6.0 does not support running both modes at the same time on a 64-bit version of Windows.

1. To switch IIS to 32-bit mode, the following command should be used:

cscript %SYSTEMDRIVE%\inetpub\adminscripts\adsutil.vbs SET W3SVC/AppPools/Enable32bitAppOnWin64 1


2.To switch IIS back to 64-bit mode, the following command should be used:


cscript %SYSTEMDRIVE%\inetpub\adminscripts\adsutil.vbs SET W3SVC/AppPools/Enable32bitAppOnWin64 0

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