diff --git a/CHANGELOG b/CHANGELOG
index d6a7dbd..b4850c8 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,12 +1,14 @@
-Version 0.9.3 prerelease (2011.03.07):
+Version 0.9.3 prerelease (2011.05.29):
     * added:   German translation made by
                Moritz Beleites <morbel at gmx.net>
     * added:   on display tab: an option how many digits should be grouped
     * changed: the way how buttons on display tab work
                suppose we have "123+34+56" in the first edit, then select
-               (bo mouse or a keyboard) "123+34" similar as you would like
+               (by mouse or a keyboard) "123+34" similar as you would like
                to copy them to the clipboard, then press a button let we say
                "sin" - the result is: "sin(123+34)+56"
+    * updated: Chinese translation
+
 
 Version 0.9.2 (2010.09.24):
     * added:   Italian translation made by
diff --git a/makerelease.sh b/makerelease.sh
index 7151769..6985a20 100644
--- a/makerelease.sh
+++ b/makerelease.sh
@@ -103,9 +103,9 @@ fi
 
 if [ $d = "y" -o $d = "Y" ]
 then
-	ntar="$n-bin.$datestr.tar.gz";
+	ntar="$n-bin.$datestr.zip";
 else
-	ntar="$n-bin.tar.gz";
+	ntar="$n-bin.zip";
 fi
 
 mkdir $n
@@ -114,7 +114,8 @@ cp ../src/ttcalc.exe    $n
 cp ../COPYRIGHT         $n
 cp ../README            $n
 cp ../CHANGELOG         $n
-tar -zcf $ntar $n
+#tar -zcf $ntar $n
+zip -r -9 $ntar $n
 rm -r $n
 
 
@@ -169,9 +170,9 @@ fi
 
 if [ $d = "y" -o $d = "Y" ]
 then
-	ntar="$n-bin.$datestr.tar.gz";
+	ntar="$n-bin.$datestr.zip";
 else
-	ntar="$n-bin.tar.gz";
+	ntar="$n-bin.zip";
 fi
 
 mkdir $n
@@ -182,7 +183,8 @@ mv ttcalc.chm           $n
 cp ../COPYRIGHT         $n
 cp ../README            $n
 cp ../CHANGELOG         $n
-tar -zcf $ntar $n
+#tar -zcf $ntar $n
+zip -r -9 $ntar $n
 rm -r $n
 
 
@@ -203,9 +205,9 @@ fi
 
 if [ $d = "y" -o $d = "Y" ]
 then
-	ntar="$n-src.$datestr.tar.gz";
+	ntar="$n-src.$datestr.zip";
 else
-	ntar="$n-src.tar.gz";
+	ntar="$n-src.zip";
 fi
 
 
@@ -239,7 +241,8 @@ cp ../COPYRIGHT $n/ttcalc
 cp ../README    $n/ttcalc
 cp ../CHANGELOG $n/ttcalc
 
-tar -zcf $ntar $n
+#tar -zcf $ntar $n
+zip -r -9 $ntar $n
 rm -r $n
 
 
@@ -259,7 +262,7 @@ echo "---------" >> note.txt
 cat ../CHANGELOG >> note.txt
 
 rm note.txt.md5
-unix2dos -o note.txt
+unix2dos note.txt
 
 echo "done"
 exit 0
diff --git a/src/languages.cpp b/src/languages.cpp
index cdbbcf8..87763d5 100644
--- a/src/languages.cpp
+++ b/src/languages.cpp
@@ -220,7 +220,7 @@ void Languages::InitErrorMessagesTab()
 	InsertErrorPair(ttmath::err_nothing_has_read,"");
 	InsertErrorPair(ttmath::err_unknown_character,"δ֪×Ö·û");
 	InsertErrorPair(ttmath::err_unexpected_final_bracket,"ÒâÍâ¶àÓàµÄÀ¨»¡");
-	InsertErrorPair(ttmath::err_stack_not_clear,"δ֪×Ö·ûûÓÐÇå¿Õ");
+	InsertErrorPair(ttmath::err_stack_not_clear,"¶ÑջûÓÐÇå¿Õ");
 	InsertErrorPair(ttmath::err_unknown_variable,"δ֪±äÁ¿");
 	InsertErrorPair(ttmath::err_division_by_zero,"³ýÊý²»ÄÜΪÁã");
 	InsertErrorPair(ttmath::err_interrupt,"¼ÆËã±»ÖжÏ");
@@ -594,7 +594,7 @@ void Languages::InitGuiMessagesTab()
 		"	morbel@gmx.net\r\n"
 		);
 	InsertGuiPair(about_text_portable_version, " portable version");
-	InsertGuiPair(about_text_exe_packer,	"EXE Packer: UPX 3.04\r\n");
+	InsertGuiPair(about_text_exe_packer,	"EXE Packer: UPX 3.07\r\n");
 	InsertGuiPair(about_box_title,			"About");
 	InsertGuiPair(about_box_button_close,	"Close");
 	InsertGuiPair(unknown_error,			"An unknown error has occurred");
@@ -801,7 +801,7 @@ void Languages::InitGuiMessagesTab()
 		"		morbel@gmx.net\r\n"
 		);
 	InsertGuiPair(about_text_portable_version, " wersja portable");
-	InsertGuiPair(about_text_exe_packer,	"Paker exe: UPX 3.04\r\n");
+	InsertGuiPair(about_text_exe_packer,	"Paker exe: UPX 3.07\r\n");
 	InsertGuiPair(about_box_title,			"O programie");
 	InsertGuiPair(about_box_button_close,	"Zamknij");
 	InsertGuiPair(unknown_error,			"Nieznany kod b³êdu");
@@ -1013,7 +1013,7 @@ void Languages::InitGuiMessagesTab()
 		"	morbel@gmx.net\r\n"
 		);
 	InsertGuiPair(about_text_portable_version, " versión portatil");
-	InsertGuiPair(about_text_exe_packer,	"EXE Packer: UPX 3.04\r\n");
+	InsertGuiPair(about_text_exe_packer,	"EXE Packer: UPX 3.07\r\n");
 	InsertGuiPair(about_box_title,			"Acerca de");
 	InsertGuiPair(about_box_button_close,	"Cerrar");
 	InsertGuiPair(unknown_error,			"Ocurrió un error desconocido");
@@ -1223,7 +1223,7 @@ void Languages::InitGuiMessagesTab()
 		"	morbel@gmx.net\r\n"
 		);
 	InsertGuiPair(about_text_portable_version, " transportabel version");
-	InsertGuiPair(about_text_exe_packer,	"EXE Packer: UPX 3.04\r\n");
+	InsertGuiPair(about_text_exe_packer,	"EXE Packer: UPX 3.07\r\n");
 	InsertGuiPair(about_box_title,			"Om");
 	InsertGuiPair(about_box_button_close,	"Luk");
 	InsertGuiPair(unknown_error,			"Der er sket en ukendt fejl");
@@ -1283,13 +1283,13 @@ void Languages::InitGuiMessagesTab()
 	InsertGuiPair(dialog_box_edit_variable_caption,"±à¼­±äÁ¿");
 	InsertGuiPair(dialog_box_add_variable_incorrect_name,"´íÎóµÄ±äÁ¿Ãû");
 	InsertGuiPair(dialog_box_add_variable_incorrect_value,"´íÎóµÄ±äÁ¿Öµ");
-	InsertGuiPair(dialog_box_add_variable_variable_exists,"Õâ¸ö±äÁ¿ÒѾ­´æÔÚ");
+	InsertGuiPair(dialog_box_add_variable_variable_exists,"´Ë±äÁ¿ÒÑ´æÔÚ");
 	InsertGuiPair(dialog_box_edit_variable_unknown_variable,"±í¸ñÖÐûÓд˱äÁ¿¡£¿ÉÄÜÊÇÄÚ²¿´íÎó£¡");
 	InsertGuiPair(dialog_box_delete_variable_confirm,"ÄãÈ·¶¨ÒªÉ¾³ýÕâЩ±äÁ¿Âð£¿");
 	InsertGuiPair(dialog_box_variable_not_all_deleted,"һЩ±äÁ¿²»ÄÜɾ³ý¡£¿ÉÄÜÊÇÄÚ²¿´íÎó£¡");
 	InsertGuiPair(dialog_box_add_function_caption,"Ìí¼Óк¯Êý");
 	InsertGuiPair(dialog_box_edit_function_caption,"±à¼­º¯Êý");
-	InsertGuiPair(dialog_box_add_function_function_exists,"Õâ¸öº¯ÊýÒѾ­´æÔÚ");
+	InsertGuiPair(dialog_box_add_function_function_exists,"´Ëº¯ÊýÒÑ´æÔÚ");
 	InsertGuiPair(dialog_box_edit_function_unknown_function,"±í¸ñÖÐûÓд˺¯Êý¡£¿ÉÄÜÊÇÄÚ²¿´íÎó£¡");
 	InsertGuiPair(dialog_box_delete_function_confirm,"ÄãÈ·¶¨ÒªÉ¾³ýÕâЩº¯ÊýÂð£¿");
 	InsertGuiPair(dialog_box_function_not_all_deleted,"һЩº¯Êý²»ÄÜɾ³ý¡£¿ÉÄÜÊÇÄÚ²¿´íÎó£¡");
@@ -1297,9 +1297,9 @@ void Languages::InitGuiMessagesTab()
 
 	InsertGuiPair(list_variables_header_1,"Ãû³Æ");
 	InsertGuiPair(list_variables_header_2,"Öµ");
-	InsertGuiPair(list_functions_header_1,"Ãû³Æ");
-	InsertGuiPair(list_functions_header_2,"񅧏");
-	InsertGuiPair(list_functions_header_3,"Öµ");
+	InsertGuiPair(list_functions_header_1,"º¯ÊýÃû");
+	InsertGuiPair(list_functions_header_2,"²ÎÊý¸öÊý");
+	InsertGuiPair(list_functions_header_3,"±í´ïʽ");
 
 	InsertGuiPair(button_add,"Ìí¼Ó");
 	InsertGuiPair(button_edit,"±à¼­");
@@ -1312,9 +1312,9 @@ void Languages::InitGuiMessagesTab()
 	InsertGuiPair(tab_display,"ÏÔʾ");
 	InsertGuiPair(tab_convert,"ת»»");
 
-	InsertGuiPair(radio_precision_1,"С - 96 bits βÊý, 32 bits Ö¸Êý");
-	InsertGuiPair(radio_precision_2,"ÖÐ - 512 bits βÊý, 64 bits Ö¸Êý");
-	InsertGuiPair(radio_precision_3,"´ó - 1024 bits βÊý, 128 bits for Ö¸Êý");
+	InsertGuiPair(radio_precision_1,"С -   96 λ βÊý,  32λ Ö¸Êý");
+	InsertGuiPair(radio_precision_2,"ÖÐ -  512 λ βÊý,  64λ Ö¸Êý");
+	InsertGuiPair(radio_precision_3,"´ó - 1024 λ βÊý, 128λ Ö¸Êý");
 
 
 	InsertGuiPair(precision_1_info,"(+/-)6.97...e+646457021, 26λÓÐЧÊý×Ö(Ê®½øÖÆ)");
@@ -1360,7 +1360,7 @@ void Languages::InitGuiMessagesTab()
 	InsertGuiPair(menu_view_normal_view,	"&ÆÕͨÊÓͼ");
 	InsertGuiPair(menu_view_compact_view,	"&ÃÔÄãÊÓͼ");
 	InsertGuiPair(menu_view_always_on_top,	"&×ÜÔÚ×îÇ°");
-	InsertGuiPair(menu_view_pad,			"Õ³Ìù°å");
+	InsertGuiPair(menu_view_pad,			"&Îı¾¼ÆËãÆ÷");
 	InsertGuiPair(menu_view_lang_english,	"&Ó¢Óï");
 	InsertGuiPair(menu_view_lang_polish,	"&²¨À¼Óï");
 	InsertGuiPair(menu_view_lang_spanish,	"&Î÷°àÑÀÓï");
@@ -1368,8 +1368,8 @@ void Languages::InitGuiMessagesTab()
 	InsertGuiPair(menu_view_lang_chinese,	"&¼òÌåÖÐÎÄ");
 	InsertGuiPair(menu_view_lang_russian,	"&¶íÓï");
 	InsertGuiPair(menu_view_lang_swedish,   "&ÈðµäÓï");
-	InsertGuiPair(menu_view_lang_italian,   "&Italian");
-	InsertGuiPair(menu_view_lang_german,    "&German"); // to translate
+	InsertGuiPair(menu_view_lang_italian,   "&Òâ´óÀûÓï");
+	InsertGuiPair(menu_view_lang_german,    "&µÂÓï");
 	InsertGuiPair(menu_view_close_program,	"&¹Ø±Õ");
 	InsertGuiPair(menu_edit_undo,			"&È¡Ïû \tCtrl+Z");
 	InsertGuiPair(menu_edit_cut,			"&¼ôÇÐ \tCtrl+X");
@@ -1381,7 +1381,7 @@ void Languages::InitGuiMessagesTab()
 	InsertGuiPair(menu_edit_copy_result,	"&¸´Öƽá¹û \tCtrl+R");
 	InsertGuiPair(menu_edit_select_all,		"&È«Ñ¡\tEsc");
 	InsertGuiPair(menu_edit_bracket,		"&¼ÓÀ¨ºÅ \tCtrl+0");			// inserting brackets: (...)
-	InsertGuiPair(menu_edit_swap,			"&Swap \tCtrl+W");				// swapping input edit for output edit
+	InsertGuiPair(menu_edit_swap,			"&ÊäÈë¼ÆËã½á¹û \tCtrl+W");				// swapping input edit for output edit
 	InsertGuiPair(menu_help_help,			"&°ïÖú");
 	InsertGuiPair(menu_help_project_page,	"&Èí¼þÖ÷Ò³");
 	InsertGuiPair(menu_help_about,			"&¹ØÓÚ");
@@ -1392,9 +1392,9 @@ void Languages::InitGuiMessagesTab()
 	InsertGuiPair(cant_init_calculations,	"²»Äܳõʼ»¯¼ÆËãÆ÷Ä£ÐÍ");
 	InsertGuiPair(message_box_error_caption,"TTCalc");
 	InsertGuiPair(cant_create_thread,		"²»ÄÜ´´½¨Á½¸öÏß³ÌÀ´ÔËËã");
-	InsertGuiPair(cant_create_pad,			"I could not create the pad window");
+	InsertGuiPair(cant_create_pad,			"²»ÄÜ´´½¨Îı¾¼ÆËã´°¿Ú");
 	InsertGuiPair(cant_create_main_window,	"²»ÄÜ´´½¨Ó¦ÓóÌÐòÖ÷´°¿Ú");
-	InsertGuiPair(cant_init_common_controls,"²»Äܳõʼ»¯Í¨Óÿؼþ(InitCommonControlsEx)");
+	InsertGuiPair(cant_init_common_controls,"²»Äܳõʼ»¯Í¨Óÿؼþ");
 	InsertGuiPair(about_text,
 		"Mathematical calculator TTCalc %d.%d.%d%s%s\r\n\r\n"
 		"¿ª·¢ÈË: Tomasz Sowa\r\n"
@@ -1403,8 +1403,8 @@ void Languages::InitGuiMessagesTab()
 		"Ö÷Ò³: http://ttcalc.sourceforge.net\r\n"
 		"Bignum library: TTMath %d.%d.%d%s (%s)\r\n"
 		"Bignum type: binary floating point numbers\r\n"
-		"Programming language: C++\r\n"
-		"Compiler: %s\r\n"
+		"±à³ÌÓïÑÔ: C++\r\n"
+		"±àÒëÆ÷: %s\r\n"
 		"%s"	// for upx
 		"\r\n"
 		"TTCalc uses the TTMath bignum library"
@@ -1427,13 +1427,13 @@ void Languages::InitGuiMessagesTab()
 		"		vdgladilovich@gmail.com\r\n"
 		"ÈðµäÓï		Lars 'Bafvert' Gafvert\r\n"
 		"		lars.gafvert@gmail.com\r\n"
-		"Italian		Damiano Monaco\r\n"
+		"Òâ´óÀûÓï		Damiano Monaco\r\n"
 		"		dmonax@gmail.com\r\n"
-		"German		Moritz Beleites\r\n"
+		"µÂÓï		Moritz Beleites\r\n"
 		"		morbel@gmx.net\r\n"
 		);
 	InsertGuiPair(about_text_portable_version, " portable version");
-	InsertGuiPair(about_text_exe_packer,	"EXE Packer: UPX 3.04\r\n");
+	InsertGuiPair(about_text_exe_packer,	"EXE Packer: UPX 3.07\r\n");
 	InsertGuiPair(about_box_title,			"¹ØÓÚ");
 	InsertGuiPair(about_box_button_close,	"¹Ø±Õ");
 	InsertGuiPair(unknown_error,			"·¢Éúδ֪´íÎó");
@@ -1459,7 +1459,7 @@ void Languages::InitGuiMessagesTab()
 #endif
 	InsertGuiPair(update_download_error,	"ÏÂÔØʱ³öÏÖ´íÎó£¬ÇëÉÔºóÖØÊÔ¡£");
 
-	InsertGuiPair(pad_title,				"Õ³Ìù°å");
+	InsertGuiPair(pad_title,				"&Îı¾¼ÆËãÆ÷");
 	InsertGuiPair(pad_menu_file,			"&Îļþ");
 	InsertGuiPair(pad_menu_edit,			"&±à¼­");
 	InsertGuiPair(pad_menu_file_new,		"&н¨"); // temporarily not used
@@ -1473,9 +1473,9 @@ void Languages::InitGuiMessagesTab()
 	InsertGuiPair(pad_menu_edit_del,		"&ɾ³ý \tDel");
 	InsertGuiPair(pad_menu_edit_select_all,	"&È«Ñ¡ \tCtrl+A");
 
-	InsertGuiPair(cannot_open_file,			"I cannot open the file");
-	InsertGuiPair(cannot_save_file,			"I cannot save to such a file");
-	InsertGuiPair(file_too_long,			"The file is too long");
+	InsertGuiPair(cannot_open_file,			"δÄÜ´ò¿ªÎļþ");
+	InsertGuiPair(cannot_save_file,			"²»Äܱ£´æÎļþ");
+	InsertGuiPair(file_too_long,			"ÎļþÌ«³¤");
 	InsertGuiPair(other_error,				"There was a problem with this operation"); // for other kinds of errors
 
 
@@ -1647,7 +1647,7 @@ void Languages::InitGuiMessagesTab()
 		"		morbel@gmx.net\r\n"
 		);
 	InsertGuiPair(about_text_portable_version, " ïåðåíîñíàÿ âåðñèÿ");
-	InsertGuiPair(about_text_exe_packer,	"óïàêîâùèê EXE: UPX 3.04\r\n");
+	InsertGuiPair(about_text_exe_packer,	"óïàêîâùèê EXE: UPX 3.07\r\n");
 	InsertGuiPair(about_box_title,			"Î ïðîãðàììå");
 	InsertGuiPair(about_box_button_close,	"Çàêðûòü");
 	InsertGuiPair(unknown_error,			"Íåèçâåñòíàÿ îøèáêà");
@@ -1859,7 +1859,7 @@ void Languages::InitGuiMessagesTab()
 		"	morbel@gmx.net\r\n"
 		);
 	InsertGuiPair(about_text_portable_version, " transportabel version");
-	InsertGuiPair(about_text_exe_packer,	"EXE Packer: UPX 3.04\r\n");
+	InsertGuiPair(about_text_exe_packer,	"EXE Packer: UPX 3.07\r\n");
 	InsertGuiPair(about_box_title,			"Om");
 	InsertGuiPair(about_box_button_close,	"Bäver");
 	InsertGuiPair(unknown_error,			"Det har inträffat ett okänt fel");
@@ -2069,7 +2069,7 @@ void Languages::InitGuiMessagesTab()
 		"	morbel@gmx.net\r\n"
 		);
 	InsertGuiPair(about_text_portable_version, " versione portabile");
-	InsertGuiPair(about_text_exe_packer,	"EXE Packer: UPX 3.04\r\n");
+	InsertGuiPair(about_text_exe_packer,	"EXE Packer: UPX 3.07\r\n");
 	InsertGuiPair(about_box_title,			"Informazioni su");
 	InsertGuiPair(about_box_button_close,	"Esci");
 	InsertGuiPair(unknown_error,			"Si e verificato un errore sconosciuto");
@@ -2277,7 +2277,7 @@ void Languages::InitGuiMessagesTab()
 		"	morbel@gmx.net\r\n"
 		);
 	InsertGuiPair(about_text_portable_version, " portable Version");
-	InsertGuiPair(about_text_exe_packer,	"EXE Packer: UPX 3.04\r\n");
+	InsertGuiPair(about_text_exe_packer,	"EXE Packer: UPX 3.07\r\n");
 	InsertGuiPair(about_box_title,			"Über TTCalc");
 	InsertGuiPair(about_box_button_close,	"Schließen");
 	InsertGuiPair(unknown_error,			"Ein unbekannter Fehler ist aufgetreten");