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Documenting the Current Application Isolation Settings

Updated: August 22, 2005

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

Before you configure IIS 6.0 to run in worker process isolation mode, document the existing application isolation settings of the Web sites and applications that are hosted by IIS. Later in the upgrade process, you will use this baseline configuration for configuring the application isolation mode for your Web sites and applications.

For each Web site and application currently running on the server, document the following:

Application isolation settings

Earlier versions of IIS can host Web sites and applications in pooled or isolated process configurations. For information about how to view the current application isolation mode, see View Application Isolation Configuration.

If you are running IIS 4.0 on Windows NT Server 4.0, your applications are isolated in one of the following ways:

  • In-process (running in-process with Inetinfo.exe)

  • Isolated (running under Microsoft Transaction Server [MTS])

If you are running IIS 5.0 on Windows 2000, your applications are isolated in one of the following ways:

  • In-process (running in-process with Inetinfo.exe)

  • Pooled (running in a pooled COM+ package)

  • Isolated (running in an isolated COM+ package)

Process identity that is used by the Web site or application

Each Web site or application configured in high isolation, or pooled isolation, uses an identity. An identity is a user account that provides a security context for worker process servicing the Web site or application. The identity can be used to secure content, by using NTFS permissions, or data, such as data stored in Microsoft SQL Server™. For more information about how to view the identity for each Web site or application, see View Web Site and Application Process Identities.

All Web sites and applications without identities run under the security context of LocalSystem.

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