Configuring IIS to Run 32-bit Applications on 64-bit Windows

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Applies To: Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1

Windows Server 2003TM, Service Pack 1 enables IIS 6.0 to run 32-bit Web applications on 64-bit Windows using the Windows-32-on-Windows-64 (WOW64) compatibility layer. IIS 6.0 using WOW64 is intended to run 32-bit personal productivity applications needed by software developers and administrators, including 32-bit Internet Information Services (IIS) Web applications. For more information about running 32-bit applications on 64-bit Windows, see Running 32-bit Applications on 64-bit Windows.

To enable IIS 6.0 to run 32-bit applications on 64-bit Windows

  1. Open a command prompt and navigate to the %systemdrive%\Inetpub\AdminScripts directory.

  2. Type the following command:

    cscript.exe adsutil.vbs set W3SVC/AppPools/Enable32BitAppOnWin64 “true”

  3. Press ENTER.

See Also

Concepts

Configuring IIS to Run 32-bit FrontPage Server Extensions on 64-bit Windows
Configuring IIS to Run 32-bit ASP.NET Applications on 64-bit Windows