Index: doc/help/ref-printers-conf.html
===================================================================
--- doc/help/ref-printers-conf.html	(revision 8841)
+++ doc/help/ref-printers-conf.html	(working copy)
@@ -21,8 +21,8 @@
 normally use the <A HREF="man-lpadmin.html">lpadmin(8)</A>
 command, web interface, or any of the available GUIs to manage
 your printers instead. If you do choose to edit this file
-manually, you will need to restart the scheduler to make them
-active.</P>
+manually, you will need to stop the scheduler first, make your
+changes, and then start the scheduler to make them active.</P>
 
 
 <H2 CLASS="title"><A NAME="Accepting">Accepting</A></H2>
Index: doc/help/ref-classes-conf.html
===================================================================
--- doc/help/ref-classes-conf.html	(revision 8841)
+++ doc/help/ref-classes-conf.html	(working copy)
@@ -21,8 +21,8 @@
 normally use the <A HREF="man-lpadmin.html">lpadmin(8)</A>
 command, web interface, or any of the available GUIs to manage
 your classes instead. If you do choose to edit this file
-manually, you will need to restart the scheduler to make them
-active.</P>
+manually, you will need to stop the scheduler first, make your
+changes, and then start the scheduler to make them active.</P>
 
 
 <H2 CLASS="title"><A NAME="Accepting">Accepting</A></H2>
Index: scheduler/printers.c
===================================================================
--- scheduler/printers.c	(revision 8841)
+++ scheduler/printers.c	(working copy)
@@ -1518,6 +1518,7 @@
 
   cupsFilePuts(fp, "# Printer configuration file for " CUPS_SVERSION "\n");
   cupsFilePrintf(fp, "# Written by cupsd on %s\n", temp);
+  cupsFilePuts(fp, "# DO NOT EDIT THIS FILE WHEN CUPSD IS RUNNING\n");
 
  /*
   * Write each local printer known to the system...
Index: scheduler/classes.c
===================================================================
--- scheduler/classes.c	(revision 8841)
+++ scheduler/classes.c	(working copy)
@@ -728,6 +728,7 @@
 
   cupsFilePuts(fp, "# Class configuration file for " CUPS_SVERSION "\n");
   cupsFilePrintf(fp, "# Written by cupsd on %s\n", temp);
+  cupsFilePuts(fp, "# DO NOT EDIT THIS FILE WHEN CUPSD IS RUNNING\n");
 
  /*
   * Write each local class known to the system...