diff --git a/xwords4/common/mempool.c b/xwords4/common/mempool.c
index b442a0ffb..4bbdb8f9a 100644
--- a/xwords4/common/mempool.c
+++ b/xwords4/common/mempool.c
@@ -47,7 +47,7 @@ struct MemPoolCtx {
 /*--------------------------------------------------------------------------*/
 
 MemPoolCtx*
-mpool_make()
+mpool_make( void )
 {
     MemPoolCtx* result = (MemPoolCtx*)XP_PLATMALLOC( sizeof(*result) );
     XP_MEMSET( result, 0, sizeof(*result) );
diff --git a/xwords4/common/mempool.h b/xwords4/common/mempool.h
index 4565dfac3..d34c39771 100644
--- a/xwords4/common/mempool.h
+++ b/xwords4/common/mempool.h
@@ -30,7 +30,7 @@ extern "C" {
 
 typedef struct MemPoolCtx MemPoolCtx;
 
-MemPoolCtx* mpool_make();
+MemPoolCtx* mpool_make(void);
 void mpool_destroy( MemPoolCtx* mpool );
 
 void* mpool_alloc( MemPoolCtx* mpool, XP_U32 size, 
diff --git a/xwords4/palm/Makefile b/xwords4/palm/Makefile
index 5cd53802a..6b6369d79 100644
--- a/xwords4/palm/Makefile
+++ b/xwords4/palm/Makefile
@@ -100,10 +100,6 @@ OBJ-RES = m68k-palmos-obj-res
 MULTILINK_OPTIONS = -basename $(ROOTNAME) -segmentsize 27k -g \
 	-deadstrip -verbose -gdb-script app.gdb
 
-ifneq (x$(OWNERNAME)x,xx)
-HASHDEF = -DOWNER_HASH=$$(./namehash $(OWNERNAME))
-endif
-
 MYDEFS_COMMON = $(PASSTHRU) -DXW_FEATURE_UTILS -DPOINTER_SUPPORT \
 	-DKEY_SUPPORT 	-DOVERRIDE_EDGE_FOR_INDEX -DCOLOR_SUPPORT \
 	-DSHOW_PROGRESS $(HASHDEF) -DNO_REG_REQUIRED -DPERIMETER_FOCUS
@@ -302,8 +298,6 @@ LocalizedStrIncludes.h StrL03e8.bin: \
 	./mkstrsres StrL03e8.bin LocalizedStrIncludes.h
 	rm -f mkstrsres
 
-namehash: namehash.c ownerhash.h
-
 ifneq (x$(BUILD_AS_PNOLET)x, xx)
 .PHONY : pnolet
 
diff --git a/xwords4/palm/gameutil.c b/xwords4/palm/gameutil.c
index 51411f8e3..cede9b72c 100644
--- a/xwords4/palm/gameutil.c
+++ b/xwords4/palm/gameutil.c
@@ -42,7 +42,6 @@ countGameRecords( PalmAppGlobals* globals )
     return numRecs;
 }
 
-#if defined OWNER_HASH || defined NO_REG_REQUIRED
 void
 deleteGameRecord( PalmAppGlobals* globals, XP_S16 index )
 {
@@ -82,7 +81,6 @@ duplicateGameRecord( PalmAppGlobals* globals, XP_S16 fromIndex )
 
     return newIndex;
 } /* duplicateGameRecord */
-#endif
 
 void
 streamToGameRecord( PalmAppGlobals* globals, XWStreamCtxt* stream, 
diff --git a/xwords4/palm/l10n/StrRes_en_US.pre b/xwords4/palm/l10n/StrRes_en_US.pre
index 89529901d..800a3c307 100644
--- a/xwords4/palm/l10n/StrRes_en_US.pre
+++ b/xwords4/palm/l10n/StrRes_en_US.pre
@@ -54,10 +54,6 @@
 				"turn trading tiles?" },
 { "STR_TRADING_REMINDER",	"Click D when done." },
 
-#ifndef NO_REG_REQUIRED
-{ "STR_NOT_UNREG_VERS",	  "Feature not available in unregistered version." },
-#endif
-
 { "STR_LOCAL_NAME",             "%s" },
 { "STR_NONLOCAL_NAME",          "%s (remote)" },
 { "STRSD_SUMMARYSCORED",        "%s:%d" },
diff --git a/xwords4/palm/l10n/StrRes_fr_FR.pre b/xwords4/palm/l10n/StrRes_fr_FR.pre
index 77fa107a0..70c9aa9d0 100644
--- a/xwords4/palm/l10n/StrRes_fr_FR.pre
+++ b/xwords4/palm/l10n/StrRes_fr_FR.pre
@@ -57,10 +57,6 @@
 				"vos lettres ?" },
 { "STR_TRADING_REMINDER",	"Cliquez D une fois fini." },
 
-#ifndef NO_REG_REQUIRED
-{ "STR_NOT_UNREG_VERS",	  "Disposition non disponible dans la version non enregistrée." },
-#endif
-
 { "STR_LOCAL_NAME",             "%s" },
 { "STR_NONLOCAL_NAME",          "%s (remote)" },
 { "STRSD_SUMMARYSCORED",        "%s:%d" },
diff --git a/xwords4/palm/ownerhash.h b/xwords4/palm/ownerhash.h
deleted file mode 100644
index 3baddfb73..000000000
--- a/xwords4/palm/ownerhash.h
+++ /dev/null
@@ -1,34 +0,0 @@
-/* -*-mode: C; fill-column: 77; c-basic-offset: 4; -*- */
-/* 
- * Copyright 1999 - 2002 by Eric House (xwords@eehouse.org).  All rights reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
- */
-
-#ifndef _OWNERHASH_H_
-#ifndef NO_REG_REQUIRED
-static unsigned long
-my_hash( unsigned char* str ) {
-    unsigned char ch;
-    unsigned long result = 0;
-    while ( ( ch = *str++ ) != '\0' ) {
-	result += result << 2 ^ ~ch;
-    }
-    return result;
-} /* my_hash */
-
-#define HASH(s)	my_hash(s)
-#endif
-#endif
diff --git a/xwords4/palm/pace_man.h b/xwords4/palm/pace_man.h
index 1e99d695a..b182fe4f8 100644
--- a/xwords4/palm/pace_man.h
+++ b/xwords4/palm/pace_man.h
@@ -123,7 +123,7 @@ void flipBtSocketListenInfoArm268K( unsigned char* out,
 # define SWAP_BTLIBSOCKETLISTENINFOTYPE_68K_TO_ARM( out, in ) /* nothing for now */
 #endif /* XWFEATURE_BLUETOOTH */
 
-PNOState* getStorageLoc();
+PNOState* getStorageLoc(void);
 #define GET_CALLBACK_STATE() getStorageLoc()
 
 #define crash()  *(int*)1L = 1
diff --git a/xwords4/palm/palmmain.c b/xwords4/palm/palmmain.c
index 711a01a0e..4e513a5a5 100644
--- a/xwords4/palm/palmmain.c
+++ b/xwords4/palm/palmmain.c
@@ -1192,7 +1192,7 @@ startApplication( PalmAppGlobals** globalsP )
         /* if we're here because dict missing, don't re-init all prefs! */
         if ( !prefsFound ) {
             palmInitPrefs( globals );
-        } else if ( checkUserName() ) {
+        } else {
             /* increment count so we get a new game rather than replace
                existing one.  We want it still there if somebody puts the
                missing dict back. */
@@ -1328,13 +1328,11 @@ stopApplication( PalmAppGlobals* globals )
             XP_FREE( globals->mpool, globals->prefsDlgState );
         }
 
-#if defined OWNER_HASH || defined NO_REG_REQUIRED
         if ( !!globals->savedGamesState && !globals->isFirstLaunch ) {
             freeSavedGamesData( MPPARM(globals->mpool)
                                 globals->savedGamesState );
             XP_FREE( globals->mpool, globals->savedGamesState );
         }
-#endif
 
         uninitHighResGlobals( globals );
 
@@ -1504,11 +1502,9 @@ applicationHandleEvent( EventPtr event )
             handler = ConnsFormHandleEvent;
             break;
 #endif
-#if defined OWNER_HASH || defined NO_REG_REQUIRED
         case XW_SAVEDGAMES_DIALOG_ID:
             handler = savedGamesHandleEvent;
             break;
-#endif
         }
         if ( !!handler ) {
             XP_ASSERT( !!frm );
@@ -2681,20 +2677,11 @@ mainViewHandleEvent( EventPtr event )
             break;
 
         case XW_SAVEDGAMES_PULLDOWN_ID:
-            if ( 0 ) {
-#if defined OWNER_HASH || defined NO_REG_REQUIRED
-            } else if ( checkUserName() ) { 
-                saveOpenGame( globals );/* so it can be accurately duped */
-                /* save game changes state; reflect on screen before
-                   popping up dialog */
-                drawChangedBoard( globals );
-                FrmPopupForm( XW_SAVEDGAMES_DIALOG_ID );
-#endif
-#ifndef NO_REG_REQUIRED
-            } else {
-                userErrorFromStrId( globals, STR_NOT_UNREG_VERS );
-#endif
-            }
+            saveOpenGame( globals );/* so it can be accurately duped */
+            /* save game changes state; reflect on screen before
+               popping up dialog */
+            drawChangedBoard( globals );
+            FrmPopupForm( XW_SAVEDGAMES_DIALOG_ID );
             break;
 
         case XW_FINISH_PULLDOWN_ID:
@@ -2968,14 +2955,12 @@ askStartNewGame( PalmAppGlobals* globals )
         /* do nothing; popping up the NEWGAMES dlg will do it -- if not
            cancelled */
         globals->newGameIsNew = XP_FALSE;
-    } else if ( checkUserName() ) {
+    } else {
         saveOpenGame( globals );
 
         drawChangedBoard( globals );
 
         globals->newGameIsNew = XP_TRUE;
-    } else {
-        return;
     }
     globals->isNewGame = true;
     globals->isFirstLaunch = false;
diff --git a/xwords4/palm/palmmain.h b/xwords4/palm/palmmain.h
index 81dd90af7..99aa1d855 100644
--- a/xwords4/palm/palmmain.h
+++ b/xwords4/palm/palmmain.h
@@ -233,9 +233,7 @@ typedef enum {
 struct PalmAppGlobals {
     FormPtr mainForm;
     PrefsDlgState* prefsDlgState;
-#if defined OWNER_HASH || defined NO_REG_REQUIRED
     SavedGamesState* savedGamesState;
-#endif
     XWGame game;
     DrawCtx* draw;
     XW_UtilCtxt util;
diff --git a/xwords4/palm/palmsavg.c b/xwords4/palm/palmsavg.c
index 800330c84..ae840114a 100644
--- a/xwords4/palm/palmsavg.c
+++ b/xwords4/palm/palmsavg.c
@@ -19,8 +19,6 @@
  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  ****************************************************************************/
 
-#if defined OWNER_HASH || defined NO_REG_REQUIRED
-
 #include <PalmTypes.h>
 #include <Form.h>
 #include <DLServer.h>
@@ -31,7 +29,6 @@
 #include "palmmain.h"
 #include "palmutil.h"
 #include "gameutil.h"
-#include "ownerhash.h"
 
 #include "xwords4defines.h"
 #include "LocalizedStrIncludes.h"
@@ -41,29 +38,6 @@ static void populateGameList( SavedGamesState* state );
 static void setFieldToSelText( SavedGamesState* state );
 static void listDrawFunc(Int16 index, RectanglePtr bounds, char** itemsText);
 
-#ifndef NO_REG_REQUIRED
-Boolean
-checkUserName()
-{
-#ifdef FOR_GREMLINS
-    return true;
-#else
-    XP_UCHAR ownerName[dlkMaxUserNameLength + 1];
-    Boolean result;
-    Err err;
-
-    ownerName[0] = '\0';
-    /* Try and use the user's name */
-    err = DlkGetSyncInfo( NULL, NULL, NULL, ownerName, NULL, NULL );
-    XP_ASSERT( err == 0 );
-
-    result = HASH(ownerName)==((unsigned long)OWNER_HASH);
-
-    return result;
-#endif
-} /* checkUserName */
-#endif
-
 /*****************************************************************************
  * Handler for dictionary info form.
  ****************************************************************************/
@@ -286,5 +260,3 @@ listDrawFunc( Int16 index, RectanglePtr bounds, char** itemsText )
 
     CALLBACK_EPILOGUE();
 } /* listDrawFunc */
-
-#endif /* OWNER_HASH */
diff --git a/xwords4/palm/palmsavg.h b/xwords4/palm/palmsavg.h
index 20a15bbbe..06a5db645 100644
--- a/xwords4/palm/palmsavg.h
+++ b/xwords4/palm/palmsavg.h
@@ -28,12 +28,4 @@ typedef struct OpenSavedGameData {
 
 Boolean savedGamesHandleEvent( EventPtr event );
 
-#if defined NO_REG_REQUIRED
-# define checkUserName() XP_TRUE
-#elif defined OWNER_HASH
- Boolean checkUserName();
-#else
-# define checkUserName() XP_FALSE
-#endif
-
 #endif
diff --git a/xwords4/palm/palmutil.h b/xwords4/palm/palmutil.h
index 3e9367df0..ef7e816ad 100644
--- a/xwords4/palm/palmutil.h
+++ b/xwords4/palm/palmutil.h
@@ -87,7 +87,7 @@ XP_Bool tryRockerKey( XP_U16 key, XP_U16 selGadget,
 # endif
 
 void setFormRefcon( void* refcon );
-void* getFormRefcon();
+void* getFormRefcon(void);
 void fitButtonToString( XP_U16 id );
 
 
diff --git a/xwords4/palm/pnolet.c b/xwords4/palm/pnolet.c
index 766cee2d3..f8349fd07 100644
--- a/xwords4/palm/pnolet.c
+++ b/xwords4/palm/pnolet.c
@@ -144,10 +144,10 @@ realArmletEntryPoint( const void *emulStateP,
 
     asm( "mov r10, %0" : : "r" (oldR10) );
     return result;
-}
+} /* realArmletEntryPoint( */
 
 PNOState*
-getStorageLoc()
+getStorageLoc( void )
 {
     asm( "adr r0,data" );
     asm( "mov pc,lr" );