The com.arbortext.e3.epicInstallation parameter tells the Arbortext PE Request Manager where to find the PE_HOME root installation directory. From this directory, Arbortext PE Request Manager can locate the Arbortext PE sub-processes. By default, the Arbortext PE Request Manager looks three directory levels above (../../..) the location of the Arbortext Publishing Engine web application directory where e3config.xml is located (e3/e3/WEB-INF). If you move the Arbortext Publishing Engine web application directory from its default location in the PE_HOME install tree, make sure to set this parameter to reflect the new location.