Release 10.1A: OpenEdge Development:
Progress 4GL Reference

PARAMETER attribute

The value of the Parameter (-param) startup parameter specified for the current session.

Data type: CHARACTER

Access: Readable

Applies to: SESSION system handle

Use the Parameter (-param) parameter to specify a character string that can be accessed from 4GL procedures. Progress does not check the value of the PARAMETER attribute and you can use the parameter and attribute to store any arbitrary string value.