How to switch to a Dedicated IIS App Pool for a web site on Plesk 10?

This article will explain how you set a dedicated IIS Application Pool using Plesk 10 control panel.

Please note: this article was originally created for our previous generation of Virtual Private Servers. As such, these instructions may not be relevant to our current generation of Virtual Private Servers.


IS application pool serves websites and web applications hosted on your server.

Dedicated IIS application pool allows your customers to have a level of isolation between websites. Since each dedicated application pool runs independently, errors in one application pool belonging to one user will not affect the applications running in other application pools dedicated to other users.

By default, Parallels Plesk Panel offers a shared application pool for all users. However, users can use dedicated application pools if this option is provided by the hosting package.

IIS application pool can work in the following two modes:

  • Shared pool – one pool is used for all users and websites by default.
  • Dedicated pool – separate pool for every customer is provided. It is also possible to allocate per-package pools within the customer‘s pool, that will isolate running websites hosted under a particular package from other customer‘s websites.

Please follow the below instructions to switch to a dedicated app pool for a particular web site;

Step 1 of 6

Login to your Parallels Plesk Panel.


Step 2 of 6

Click on the Domains link on the left panel.


Step 3 of 6

Click on then Control Panel link next to the relevant domain name.


Step 4 of 6

Click on the More link under the Websites and Domains heading.


Step 5 of 6

Click on the Dedicated IIS Application Pool button.


Step 6 of 6

Click on the Switch on button in order to enable a dedicated IIS application pool for the website.