The way Enterprise Server for .NET sets a region's startup properties file depends on how you start a region.
This overrides any property file settings in the user interface.
To set a region's properties file through the user interface:
To set a region's properties file with the seestart command:
seestart -region:DEMO -regionfile:Region_Common.config -properties:C:\Configurations\properties\DEMOproperties.config