In addition to the Arbortext PE Unterprozess pool attributes, a pool may have parameters. Each pool parameter is defined by the Parameter element, which is a descendant of the SubprocessPoolContext element (which is a descendant of the SubprocessPool element) in e3config.xml.

When an Arbortext PE Unterprozess pool starts an Arbortext PE Unterprozess, it passes the Arbortext PE Request Manager global parameters and any Arbortext PE Unterprozess pool parameters and their values to the Arbortext PE Unterprozess, making them available to its Arbortext Publishing Engine applications.