PAS for OpenEdge runs within a web application server environment. For an ABL application to run consistently and securely within that environment, the default location of certain file system paths must be different than the classic AppServer. The following table shows a list of known differences:

Table 1. File system directories and paths in PAS for OpenEdge and classic AppServer
Path Classic AppServer PAS for OpenEdge Comments
Working directory $WRKDIR $CATALINA_BASE/work Relocated to the PAS for OpenEdge instance's work directory
Temporary directory CWD (current working directory) $CATALINA_BASE/temp Relocated to PAS for OpenEdge instance's temp directory
PROPATH $WRKDIR $CATALINA_BASE/openedge Relocated so that the ABL application's code is located in the instance that runs it