Index: trunk/config/cad_server.properties
===================================================================
--- trunk/config/cad_server.properties	(revision 662)
+++ trunk/config/cad_server.properties	(revision 670)
@@ -22,4 +22,6 @@
 # UserInterface         : The class that serves as the UI for the Server. 
 
+#https://stackoverflow.com/questions/31505644/file-separator-in-properties (from 2015)
+
 UserInterface          = tmcsim.cadsimulator.viewer.CADServerViewer