A request XML packet adding Web applications to the Application pool of the specified client includes the add_packages_to_client_pool operation node:
<packet version="1.4.2.0">
<add_packages_to_client_pool>
...
</add_packages_to_client_pool>
</packet>
The add_packages_to_client_pool node has the following graphical representation:

Note: The node differs from version to version of the protocol. For more information, refer to the History of Changes section.
Note: The node differs from version to version of the protocol. For more information, refer to the History of Changes section.
Remarks
You can add multiple Web applications to the specified Application pool in a single packet. Add as many package_id parameters as the number of Web applications to be added.
<filter>
<package_id>...</package_id>
¡
<package_id>...</package_id>
</filter>