An Application Pool can contain one or more applications and allows us to configure a level of isolation between different Web applications.
For example, if you want to isolate all the Web applications running in the same computer, you can do this by creating a separate pool for every Web application and placing them in their corresponding pool.
Because each pool runs in its own worker process, errors in one application pool will not affect the applications running in other application pools. Deploying applications in application pools is a primary advantage of running IIS 6.0 in worker process isolation mode because you can customize the application pools to achieve the degree of application isolation that you need.
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John is Operations Director at Secura and a Windows Server expert. Before all things IIS related, he was also a champion powerlifter.
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