diff --git a/src/kc/kcApp.cpp b/src/kc/kcApp.cpp
index 1e4c75a..82ef2c4 100644
--- a/src/kc/kcApp.cpp
+++ b/src/kc/kcApp.cpp
@@ -61,9 +61,9 @@
 #define TIMER_PERIOD (1.0/20.0)   // 50ms
 
 
-kcApp::kcApp(cmCtx_t* ctx, cmTsMp1cH_t printqH, int w, int h, const cmChar_t* title, cmAiH_t aiH, int argc, char* argv[] )
+kcApp::kcApp(cmCtx_t* ctx, cmPrH_t prH, cmTsMp1cH_t printqH, int w, int h, const cmChar_t* title, cmAiH_t aiH, int argc, char* argv[] )
   : Fl_Double_Window(w, h,title),
-    _ctx(ctx),_aiH(aiH),
+    _ctx(ctx),_prH(prH),_aiH(aiH),
     _menu(NULL),_splt(NULL),_con(NULL),_tabs(NULL),_mstr_grp(NULL),
     _as_btn(NULL),_ai_btn(NULL),_ao_btn(NULL),_pgm_btn(NULL),
     _ss_btn(NULL),_sr_btn(NULL),_ena_chk(NULL),
@@ -142,6 +142,8 @@ void kcApp::resize(int x, int y, int w, int h)
 {
   Fl_Double_Window::resize(x, y, w, h);
   _splt->resize(0, kMenuH, w, h-kStatusH);
+  cmPrefsPathSetInt(_prH,"appWndW",w);
+  cmPrefsPathSetInt(_prH,"appWndH",h);
 }
 
 void kcApp::tlCtlNewTimeLineFile( tlCtl* tlCtl, const cmChar_t* fn )
diff --git a/src/kc/kcApp.h b/src/kc/kcApp.h
index 5b35ba2..132d934 100644
--- a/src/kc/kcApp.h
+++ b/src/kc/kcApp.h
@@ -25,13 +25,8 @@ class Fl_Progress;
     kMemFailKmRC,
     kFileSysFailKmRC,
     kQueueFailKmRC,
-    kTextSysFailKmRC,
-    
-    kPrefsNotFoundKmRC,
-    kPrefWriteFailKmRC,
-    kPrefLoadFailKmRC,
-    kPrefFailKmRC,
-    kPrefSetFailKmRC,
+    kTextSysFailKmRC,    
+    kPrefsFailKmRC,
     kMlistLoadFailKmRC,
     kJsonFailKmRC,
     kDeserialFailKmRC,
@@ -44,7 +39,7 @@ class kcApp : public Fl_Double_Window, public tlCtlRspdr
 public:
   typedef unsigned kcKmRC_t;
 
-  kcApp(cmCtx_t* ctx, cmTsMp1cH_t printQH, int w, int h, const cmChar_t* title, cmAiH_t aiH, int argc, char* argv[] );
+  kcApp(cmCtx_t* ctx, cmPrH_t prH, cmTsMp1cH_t printQH, int w, int h, const cmChar_t* title, cmAiH_t aiH, int argc, char* argv[] );
   virtual ~kcApp();
 
   void resize(int x, int y, int w, int h);
@@ -278,6 +273,7 @@ private:
 
 
   cmCtx_t*         _ctx;
+  cmPrH_t          _prH;
   cmAiH_t          _aiH;
 
   Fl_Menu_Bar*     _menu;
diff --git a/src/kc/kcMain.cpp b/src/kc/kcMain.cpp
index 0803436..dd27703 100644
--- a/src/kc/kcMain.cpp
+++ b/src/kc/kcMain.cpp
@@ -22,6 +22,7 @@
 #include "cmThread.h"
 #include "cmText.h"
 #include "cmFileSys.h"
+#include "cmPrefs.h"
 #include "cmDspValue.h"
 #include "cmMsgProtocol.h"
 #include "cmAudDspIF.h"
@@ -36,6 +37,12 @@
 #include "tlCtl.h"
 #include "kcApp.h"
 
+enum
+{
+  kAppWndW = 1600,
+  kAppWndH = 750
+};
+  
 kcApp* kcAppPtr = NULL;
 
 
@@ -57,20 +64,33 @@ cmRC_t handleStatusMsg( void* cbDataPtr, const cmAudioSysStatus_t* r, const doub
 cmRC_t handleUiMsg(     void* cbDataPtr, const cmDspUiHdr_t* r )
 { kcAppPtr->_handleUiMsg(r);  return cmOkRC;}
 
+cmPrRC_t kcInitPrefs( cmCtx_t* ctx, cmPrH_t* prH )
+{
+  cmPrRC_t rc = kOkPrRC;
+
+  if((rc = cmPrefsInit(ctx, prH, NULL, NULL, NULL, NULL )) != kOkPrRC )
+    return rc;
+
+  unsigned flags = 0;
+  cmPrefsCreateInt(*prH, 1, "appWndW", flags, kAppWndW );
+  cmPrefsCreateInt(*prH, 2, "appWndH", flags, kAppWndH );
+
+  return cmPrefsRC(*prH);
+}
+
 int main( int argc, char* argv[] )
 {
   cmCtx_t     ctx;
   cmTsMp1cH_t printqH         = cmTsMp1cNullHandle;
-  int         appWndW         = 1600;
-  int         appWndH         = 750;
   const char* appPrefDir      = "kc";
   const char* appTitle        = "KC Console";
-  bool        memDebugFl      = cmDEBUG_FL;
+  bool        memDebugFl      = false; //cmDEBUG_FL;
   unsigned    memPadByteCnt   = memDebugFl ? 8 : 0;
   unsigned    memAlignByteCnt = 16;
   unsigned    memFlags        = memDebugFl ? (kTrackMmFl | kDeferFreeMmFl | kFillUninitMmFl) : 0;
   cmAdlH_t    adlH            = cmAdlNullHandle;
   cmAiH_t     aiH             = cmAiNullHandle;
+  cmPrH_t     prH             = cmPrNullHandle;
   cmAdIfDispatch_t r;
 
   cmCtxSetup(&ctx,appTitle,print,print,NULL,memPadByteCnt,memAlignByteCnt,memFlags);
@@ -90,6 +110,10 @@ int main( int argc, char* argv[] )
   if( cmTsInitialize(&ctx) != kOkTxRC )
     cmErrMsg(&ctx.err,kTextSysFailKmRC,"Text system initialization failed.");
 
+  // iniitalize the preferences
+  if( kcInitPrefs(&ctx,&prH) != kOkPrRC )
+    cmErrMsg(&ctx.err,kPrefsFailKmRC,"Preference initializatkion failed.");
+
   // create the print queue
   if( cmTsMp1cCreate( &printqH, 8192, print_queue_cb, NULL, NULL ) != kOkThRC )
     cmErrMsg(&ctx.err,kQueueFailKmRC,"Print queue creation failed.");
@@ -108,8 +132,10 @@ int main( int argc, char* argv[] )
 
   if( cmErrLastRC(&ctx.err) == kOkKmRC )
   {
-
-    kcAppPtr = new kcApp(&ctx, printqH, appWndW, appWndH, appTitle, aiH, argc, argv);
+    int appWndW = cmPrefsIntDef(prH,"appWndW", kAppWndW);
+    int appWndH = cmPrefsIntDef(prH,"appWndH", kAppWndH);
+    
+    kcAppPtr = new kcApp(&ctx, prH, printqH, appWndW, appWndH, appTitle, aiH, argc, argv);
     
     cmAudDspLocalSendSetup(adlH);
 
@@ -139,6 +165,15 @@ int main( int argc, char* argv[] )
   if( cmTsMp1cDestroy(&printqH) != kOkThRC )
     cmErrMsg(&ctx.err,kQueueFailKmRC,"Print queue destroy failed.");
 
+  // write the preferences file
+  if( cmPrefsIsDirty(prH) )
+    if( cmPrefsWrite(prH,cmPrefsFileName(prH)) != kOkPrRC )
+      cmErrMsg(&ctx.err,kPrefsFailKmRC,"Preferences save failed.");
+
+  // finalize the preferences file
+  if( cmPrefsFinalize(&prH) != kOkPrRC )
+    cmErrMsg(&ctx.err,kPrefsFailKmRC,"Preference finalize failed.");
+
   // finalize the text system
   if( cmTsFinalize() != kOkTxRC )
     cmErrMsg(&ctx.err,kTextSysFailKmRC,"Text system finalization failed.");