In V11 and later, this Replication Agent configuration keyword enables monitoring of changes to the c-treeACE "engine":
DBENGINE_CHECK = 1
Enables tracking changes to the ctsrvr.cfg, CTSTATUS.FCS, *.lib, and *.dll.
Schedules a future action for double checking the c-treeDB Engine changes. It is scheduled with a delay of 5 seconds by default, and all the pending checks for a given c-tree installation are grouped to avoid several re-checks. The action execution is able to change an existing installation, add a new one, or delete an old one.