diff -Nurd tree-001-nao//include/config.h tree-002-not-a-public-server//include/config.h
--- tree-001-nao//include/config.h	2012-03-28 22:32:38.000000000 -0400
+++ tree-002-not-a-public-server//include/config.h	2012-03-28 22:47:59.000000000 -0400
@@ -160,6 +160,8 @@
 # endif
 #endif
 
+/* #define PUBLIC_SERVER */	/* Public servers don't support explore mode */
+
 #define LOGFILE "logfile"	/* larger file for debugging purposes */
 #define NEWS "news"		/* the file containing the latest hack news */
 #define PANICLOG "paniclog"	/* log of panic and impossible events */
@@ -378,9 +380,16 @@
 #define AUTOPICKUP_EXCEPTIONS  /* exceptions to autopickup */
 
 #define DUMP_LOG        /* Dump game end information to a file */
+#ifdef PUBLIC_SERVER
 #define DUMP_FN "/dgldir/userdata/%N/%n/dumplog/%t.nh343.txt"      /* Fixed dumpfile name, if you want
                                    * to prevent definition by users */
 #define DUMPMSGS 20     /* Number of latest messages in the dump file  */
+#define SIMPLE_MAIL /* dgamelaunch simple mail */
+#define SERVER_ADMIN_MSG "admin_msg"
+#define LIVELOGFILE "livelog"
+/* from Sporkhack */
+#define WHEREIS_FILE /* Write out player's current location to player.whereis */
+#endif
 
 #define SHOW_BORN    /* extinct & showborn -patch */
 #define SHOW_EXTINCT
@@ -389,14 +398,8 @@
 
 #define HPMON /* hpmon -patch */
 
-#define SIMPLE_MAIL /* dgamelaunch simple mail */
-
 #define PARANOID /* paranoid quit &c */
 
-#define SERVER_ADMIN_MSG "admin_msg"
-
-#define LIVELOGFILE "livelog"
-
 #define XLOGFILE "xlogfile"  /* even larger logfile */
 /* #define REALTIME_ON_BOTL */  /* Show elapsed time on bottom line.  Note:
                                  * this breaks savefile compatibility. */
@@ -417,8 +420,6 @@
 #define RECORD_ALIGN0   /* Record initial alignment in logfile */
 #endif
 
-/* from Sporkhack */
-#define WHEREIS_FILE /* Write out player's current location to player.whereis */
 
 #define USER_DUNGEONCOLOR
 
diff -Nurd tree-001-nao//src/cmd.c tree-002-not-a-public-server//src/cmd.c
--- tree-001-nao//src/cmd.c	2012-03-28 22:32:38.000000000 -0400
+++ tree-002-not-a-public-server//src/cmd.c	2012-03-28 22:33:06.000000000 -0400
@@ -504,8 +504,10 @@
 	char buf[BUFSZ];
 	int really_xplor = FALSE;
 #endif
+#ifdef PUBLIC_SERVER
 	pline("Explore mode is for local games, not public servers.");
 	return 0;
+#endif
 
 	if(!discover && !wizard) {
 		pline("Beware!  From explore mode there will be no return to normal game.");