There is a FAQ (#7) - that explains what constitutes a config change.
We have some questions...
1) The following variables weren't included:
prtGeneralInputDefaultIndex
prtGeneralOutputDefaultIndex
prtGeneralMarkerDefaultIndex
prtGeneralMediaPathDefaultIndex
This seems inconsistent with other listed 'default' settings --
prtChannelDefaultPageDescLangIndex, prtInterpreterDefaultOrientation,
prtInterpreterDefaultCharSetIn, prtInterpreterDefaultCharSetOut.
2) These variables were also not included but could be considered changes
to the configuration although they do not effect operations.
prtGeneralCurrentLocalization
prtConsoleLocalization
Harry Lewis - IBM Printing Systems