diff --git a/contrib/C_Layer/ASM/loadboxlib.asm b/contrib/C_Layer/ASM/loadboxlib.asm
index 875216e43f..099349ced8 100644
--- a/contrib/C_Layer/ASM/loadboxlib.asm
+++ b/contrib/C_Layer/ASM/loadboxlib.asm
@@ -17,8 +17,10 @@ public press_key as '_press_key'
 ;;; Returns 0 on success. -1 on failure.
 
 proc init_boxlib
+	pusha
 	mcall 68,11
 	stdcall dll.Load, @IMPORT
+	popa
 	ret
 endp	
 	
@@ -58,9 +60,9 @@ import lib_boxlib, \
 	menu_bar_draw, 'menu_bar_draw' , \
 	menu_bar_mouse, 'menu_bar_mouse' , \
 	menu_bar_activate, 'menu_bar_activate' , \
-	fb_draw_panel, 'filebrowser_draw' , \
-	fb_mouse, 'filebrowser_mouse' , \
-	fb_key, 'filebrowser_key' , \
+	fb_draw_panel, 'FileBrowser_draw' , \
+	fb_mouse, 'FileBrowser_mouse' , \
+	fb_key, 'FileBrowser_key' , \
 	tl_data_init, 'tl_data_init' , \
 	tl_data_clear, 'tl_data_clear' , \
 	tl_info_clear, 'tl_info_clear' , \
@@ -150,3 +152,7 @@ public dynamic_button_mouse as '_dynamic_button_mouse'
 
 public path_show_prepare as '_path_show_prepare'
 public path_show_draw as '_path_show_draw'
+
+public fb_draw_panel as '_filebrowse_draw'
+public fb_mouse as '_filebrowse_mouse'
+public fb_key as '_filebrowse_key'
diff --git a/contrib/C_Layer/ASM/loadbuf2d.asm b/contrib/C_Layer/ASM/loadbuf2d.asm
index 54674a4181..eb4ee799f6 100644
--- a/contrib/C_Layer/ASM/loadbuf2d.asm
+++ b/contrib/C_Layer/ASM/loadbuf2d.asm
@@ -14,8 +14,10 @@ public init_buf2d as '_kolibri_buf2d_init'
 ;;; Returns 0 on success. -1 on failure.
 
 proc init_buf2d
+	pusha
 	mcall 68,11
 	stdcall dll.Load, @IMPORT
+	popa
 	ret
 endp	
 
diff --git a/contrib/C_Layer/ASM/loadhttp.asm b/contrib/C_Layer/ASM/loadhttp.asm
index 762441db55..7c4b0c8205 100644
--- a/contrib/C_Layer/ASM/loadhttp.asm
+++ b/contrib/C_Layer/ASM/loadhttp.asm
@@ -21,8 +21,10 @@ public init_network as '_kolibri_http_init'
 ;;; Returns 0 on success. -1 on failure.
 
 proc init_network
+	pusha
 	mcall 68,11
 	stdcall dll.Load, @IMPORT
+	popa
 	ret
 endp	
 	
diff --git a/contrib/C_Layer/ASM/loadkmenu.asm b/contrib/C_Layer/ASM/loadkmenu.asm
index cbbd544729..bd021a7269 100644
--- a/contrib/C_Layer/ASM/loadkmenu.asm
+++ b/contrib/C_Layer/ASM/loadkmenu.asm
@@ -13,8 +13,10 @@ public init_kmenu as '_kolibri_kmenu_init'
 ;;; Returns 0 on success. -1 on failure.
 
 proc init_kmenu
+	pusha
 	mcall 68,11
 	stdcall dll.Load, @IMPORT
+	popa
 	ret
 endp	
 	
diff --git a/contrib/C_Layer/ASM/loadlibimg.asm b/contrib/C_Layer/ASM/loadlibimg.asm
index 9400d66641..8a707cf67b 100644
--- a/contrib/C_Layer/ASM/loadlibimg.asm
+++ b/contrib/C_Layer/ASM/loadlibimg.asm
@@ -14,8 +14,10 @@ public init_libimg as '_kolibri_libimg_init'
 ;;; Returns 0 on success. -1 on failure.
 
 proc init_libimg
+	pusha
 	mcall 68,11
 	stdcall dll.Load, @IMPORT
+	popa
 	ret
 endp	
 
diff --git a/contrib/C_Layer/ASM/loadlibini.asm b/contrib/C_Layer/ASM/loadlibini.asm
index 14421efc22..c5939fe96b 100644
--- a/contrib/C_Layer/ASM/loadlibini.asm
+++ b/contrib/C_Layer/ASM/loadlibini.asm
@@ -15,8 +15,10 @@ public init_libini as '_kolibri_libini_init'
 ;;; Returns 0 on success. -1 on failure.
 
 proc init_libini
+	pusha
 	mcall 68,11
 	stdcall dll.Load, @IMPORT
+	popa
 	ret
 endp	
 	
diff --git a/contrib/C_Layer/ASM/loadproclib.asm b/contrib/C_Layer/ASM/loadproclib.asm
index cb1340055a..cbc6ad9826 100644
--- a/contrib/C_Layer/ASM/loadproclib.asm
+++ b/contrib/C_Layer/ASM/loadproclib.asm
@@ -14,8 +14,10 @@ public init_proclib as '_kolibri_proclib_init'
 ;;; Returns 0 on success. -1 on failure.
 
 proc init_proclib
+	pusha
 	mcall 68,11
 	stdcall dll.Load, @IMPORT
+	popa
 	ret
 endp	
 
diff --git a/contrib/C_Layer/ASM/loadrasterworks.asm b/contrib/C_Layer/ASM/loadrasterworks.asm
index 18b0da9916..d7489673cd 100644
--- a/contrib/C_Layer/ASM/loadrasterworks.asm
+++ b/contrib/C_Layer/ASM/loadrasterworks.asm
@@ -15,8 +15,10 @@ public init_rasterworks as '_kolibri_rasterworks_init'
 ;;; Returns 0 on success. -1 on failure.
 
 proc init_rasterworks
+	pusha
 	mcall 68,11
 	stdcall dll.Load, @IMPORT
+	popa
 	ret
 endp	
 	
diff --git a/contrib/C_Layer/EXAMPLE/libguic_kolibri/Makefile b/contrib/C_Layer/EXAMPLE/libguic_kolibri/Makefile
index 015ffca4e5..58cbb60161 100644
--- a/contrib/C_Layer/EXAMPLE/libguic_kolibri/Makefile
+++ b/contrib/C_Layer/EXAMPLE/libguic_kolibri/Makefile
@@ -5,13 +5,13 @@ LD = kos32-ld
 SDK_DIR:= $(abspath ../../../sdk)
 CLAYER:= $(abspath ../../)
 
-LDFLAGS = -static -S -nostdlib -T $(SDK_DIR)/sources/newlib/app.lds \
-          --image-base 0 -lgcc -ldll -lc.dll -lapp
+LDFLAGS = -static -S -nostdlib -T $(SDK_DIR)/lib/app-dynamic.lds \
+          --image-base 0 -lgcc -ldll -lc.dll 
 
-CFLAGS = -g -U_Win32 -U_WIN32 -U__MINGW32__
+CFLAGS = -g -U_Win32 -U_WIN32 -U__MINGW32__ -std=gnu90
 
 INCLUDES= -I. -I$(SDK_DIR)/sources/newlib/libc/include -I$(CLAYER)/INCLUDE
-LIBPATH:= -L $(SDK_DIR)/lib -L /home/autobuild/tools/win32/mingw32/lib
+LIBPATH:= -L $(SDK_DIR)/lib 
 
 OBJPATH = $(CLAYER)/OBJ
 
diff --git a/contrib/C_Layer/EXAMPLE/libguic_kolibri/Makefile482 b/contrib/C_Layer/EXAMPLE/libguic_kolibri/Makefile482
new file mode 100644
index 0000000000..35df843f0a
--- /dev/null
+++ b/contrib/C_Layer/EXAMPLE/libguic_kolibri/Makefile482
@@ -0,0 +1,46 @@
+NAME=boardmsg
+CC = kos32-gcc
+LD = kos32-ld
+
+SDK_DIR:= $(abspath ../../../sdk)
+CLAYER:= $(abspath ../../)
+
+LDFLAGS = -static -S -nostdlib -T $(SDK_DIR)/sources/newlib/app.lds \
+          --image-base 0 -lgcc -ldll -lc.dll 
+
+CFLAGS = -g -U_Win32 -U_WIN32 -U__MINGW32__
+
+INCLUDES= -I. -I$(SDK_DIR)/sources/newlib/libc/include -I$(CLAYER)/INCLUDE
+LIBPATH:= -L $(SDK_DIR)/lib -L /home/autobuild/tools/win32/mingw32/lib
+
+OBJPATH = $(CLAYER)/OBJ
+
+SOURCES =    boardmsg.c option_menu.c
+
+OBJECTS =  $(patsubst %.c, %.o, $(SOURCES))
+
+all: boardmsg option_menu scroll_progress dbutton_files
+
+scroll_progress: scroll_progress.o
+#	$(LD) $(LIBPATH) --subsystem native -o $@ $^ $(OBJPATH)/loadboxlib.obj $(LDFLAGS)
+	$(LD) $(LIBPATH) --subsystem windows -o $@ $^ $(OBJPATH)/loadboxlib.obj $(LDFLAGS)
+	kos32-objcopy $@ -O binary
+
+
+option_menu: option_menu.o
+	$(LD) $(LIBPATH) --subsystem native -o $@ $^ $(OBJPATH)/loadboxlib.obj $(LDFLAGS)
+	kos32-objcopy $@ -O binary
+
+boardmsg: boardmsg.o
+	$(LD) $(LIBPATH) --subsystem native -o $@ $^ $(OBJPATH)/loadboxlib.obj $(LDFLAGS)
+	kos32-objcopy $@ -O binary
+
+dbutton_files: dbutton_files.o
+	$(LD) $(LIBPATH) --subsystem native -o $@ $^ $(OBJPATH)/loadboxlib.obj $(OBJPATH)/loadproclib.obj $(OBJPATH)/loadlibimg.obj $(LDFLAGS) -Map=dbutton_files.map
+	kos32-objcopy $@ -O binary
+
+%.o : %.c Makefile
+	$(CC) -c $(INCLUDES) $(CFLAGS) -o $@ $<
+
+clean:
+	-rm -f *.o
diff --git a/contrib/C_Layer/EXAMPLE/libguic_kolibri/dbutton_files.c b/contrib/C_Layer/EXAMPLE/libguic_kolibri/dbutton_files.c
index 308e35b969..6d759dec95 100644
--- a/contrib/C_Layer/EXAMPLE/libguic_kolibri/dbutton_files.c
+++ b/contrib/C_Layer/EXAMPLE/libguic_kolibri/dbutton_files.c
@@ -22,7 +22,7 @@
 #include "kolibri_libimg.h"
 
 char temp_path[4096];
-char** sys_path = (char**)0x20; // hack - get path from KOS header
+char** sys_path = (char**)0x20; // hack - get path from KOS header. analog argv[0]
 
 int main(int argc, char **argv)
 {
@@ -48,7 +48,7 @@ int main(int argc, char **argv)
          *image_data, *pc;
     // make full path + argv
     strcpy(temp_path, *sys_path);
-    pc = strrchr(temp_path, '/');
+    pc = strrchr(temp_path, '/');  // this fails if has params with '/' within. use argv[0] instead
     if (pc) pc[1] = 0;
     strcat(temp_path, "reload_16x16_8b.png");
     debug_board_write_str(temp_path);
diff --git a/contrib/C_Layer/INCLUDE/kolibri_debug.h b/contrib/C_Layer/INCLUDE/kolibri_debug.h
index 0e254fd826..1bee8c378b 100644
--- a/contrib/C_Layer/INCLUDE/kolibri_debug.h
+++ b/contrib/C_Layer/INCLUDE/kolibri_debug.h
@@ -26,7 +26,7 @@ void debug_board_printf(const char *format,...)
 {
 	va_list ap;
 	char log_board[300];
-	
+
 	va_start (ap, format);
 	vsprintf(log_board, format, ap);
 	va_end(ap);
diff --git a/contrib/C_Layer/INCLUDE/kolibri_filebrowse.h b/contrib/C_Layer/INCLUDE/kolibri_filebrowse.h
new file mode 100644
index 0000000000..873134db9c
--- /dev/null
+++ b/contrib/C_Layer/INCLUDE/kolibri_filebrowse.h
@@ -0,0 +1,130 @@
+#ifndef KOLIBRI_FILEBROWSE_H
+#define KOLIBRI_FILEBROWSE_H
+
+typedef struct {
+	uint32_t type;
+	uint32_t x_w;  // 10, 400
+	uint32_t y_h; // 45, 550
+	uint32_t icon_size_xy;  // x_y (16, 16)
+	uint16_t line_size_x;
+	uint16_t line_size_y;  // 18 or 17  - высота линии
+	uint16_t type_size_x;
+	uint16_t size_size_x;
+	uint16_t date_size_x;
+	uint16_t attributes_size_x;
+	uint32_t icon_assoc_area;
+	uint32_t icon_raw_area;   // z_icons.png
+	uint32_t icon_resolution_raw;  // ...
+	uint32_t palette_raw;      // ...
+	uint32_t directory_path_area;
+	uint32_t file_name_area;
+	uint32_t select_flag;
+	color_t background_color;  // 0xffffff
+	color_t select_color; // 0xbbddff
+    color_t select_text_color;
+    color_t text_color;
+    color_t reduct_text_color; // 0xff0000
+    color_t marked_text_color;
+    uint32_t max_panel_line;            // // moved to scrollbar->cur_area, - максимальное число строк в окне
+	uint32_t select_panel_counter;  // 1 if focused
+	uint32_t folder_block;   //  количество блоков данных входа каталога (БДВК) ????? format BDVK == bdfe,, // moved to scrollbar->max_area
+	uint32_t start_draw_line;       // moved to scrollbar->position and back
+	uint16_t start_draw_cursor_line;
+    void* folder_data;      // ??? format 32 byte - header, +4 = number, +32 - bdvk[], size of rec(bdvk cp866) = 304byte
+    uint32_t temp_counter;
+    uint32_t file_name_length;
+    uint32_t marked_file;
+    uint32_t extension_size;
+    uint32_t extension_start;
+    void* type_table; //dd features_table ; +122   ? table format
+    char* ini_file_start;   // icons.ini
+    char* ini_file_end;     // start + filesize
+    uint32_t draw_scroll_bar;  // 1 = need redraw sb after key()
+    uint32_t font_size_xy;  // x_y	(6, 9)
+    uint32_t mouse_keys;
+    uint32_t mouse_keys_old;
+    uint32_t mouse_pos;
+    uint32_t mouse_keys_delta;
+    uint32_t mouse_key_delay; // 50
+    uint32_t mouse_keys_tick;
+    uint16_t start_draw_cursor_line_2;
+    uint32_t all_redraw;         // 1 - force draw, 2 - ????
+    uint32_t selected_BDVK_adress;
+    uint16_t key_action;   // fill before key(), 1..12, wiki
+    uint16_t key_action_num; // fill before key()  fn2 >> 8
+    char* name_temp_area 		dd name_temp_area ;+180
+    uint32_t max_name_temp_size;
+    uint32_t display_name_max_length;
+    uint32_t draw_panel_selection_flag;
+    uint32_t mouse_pos_old;
+    uint32_t marked_counter;
+    char* keymap_pointer 		dd keymap_area ;+204
+
+
+} file_browser;
+/*
+features_table:
+.type_table:
+	db '<DIR> '
+;---------------------------------------------------------------------
+.size_table:
+	db '1023b '
+;---------------------------------------------------------------------
+.date_table:
+	db '00.00.00 00:00 '
+;---------------------------------------------------------------------
+.year_table:
+	db '    '
+
+name_temp_area:
+	rb 256
+
+keymap_area:
+	rb 128
+
+inline frame* kolibri_filebrowser(frame* f, uint32_t x_w, uint32_t y_h, color_t ext_col, color_t int_col, char *text, uint32_t text_position, color_t font_color, color_t font_bgcolor)
+{
+    f->type = 0;
+    f->x_w = x_w;
+    f->y_h = y_h;
+    f->ext_col = ext_col;
+    f->int_col = int_col;
+    f->draw_text_flag = text != NULL;
+    f->text_pointer = text;
+    f->text_position = text_position;
+    f->font_number = 0;  // 0 == font 6x9, 1==8x16
+    f->font_size_y = 9;
+    f->font_color = font_color | 0x80000000;
+    f->font_bg_color = font_bgcolor;
+
+    return f;
+}
+
+inline frame* kolibri_new_frame(uint32_t x_w, uint32_t y_h, color_t ext_col, color_t int_col, char *text, uint32_t text_position, color_t font_color, color_t font_bgcolor)
+{
+    frame *new_frame = (frame *)malloc(sizeof(frame));
+    return kolibri_frame(new_frame, x_w, y_h, ext_col, int_col, text, text_position, font_color, font_bgcolor);
+}
+
+inline frame* kolibri_frame_def(frame* f, uint32_t x_w, uint32_t y_h, char *text)
+{
+    return kolibri_frame(f, x_w, y_h, 0x00FCFCFC, 0x00DCDCDC, text, TOP, kolibri_color_table.color_work_text, kolibri_color_table.color_work_area);
+}
+
+inline frame* kolibri_new_frame_def(uint32_t x_w, uint32_t y_h, char *text)
+{
+    return kolibri_new_frame(x_w, y_h, 0x00FCFCFC, 0x00DCDCDC, text, TOP, kolibri_color_table.color_work_text, kolibri_color_table.color_work_area);
+}
+
+inline void gui_add_frame(kolibri_window *wnd, frame* f)
+{
+    kolibri_window_add_element(wnd, KOLIBRI_FRAME, f);
+}
+
+FileBrowser_draw - рисование элемента
+FileBrowser_mouse - эта функция должна вызываться при вводе информации с мыши
+FileBrowser_key
+
+extern void (*frame_draw)(frame *) __attribute__((__stdcall__));
+/*
+#endif /* KOLIBRI_FILEBROWSE_H */
diff --git a/contrib/C_Layer/INCLUDE/kolibri_menubar.h b/contrib/C_Layer/INCLUDE/kolibri_menubar.h
index 4923f0a125..616e01414d 100644
--- a/contrib/C_Layer/INCLUDE/kolibri_menubar.h
+++ b/contrib/C_Layer/INCLUDE/kolibri_menubar.h
@@ -40,7 +40,7 @@ typedef struct
 } menubar;
 
 
-inline menubar* kolibri_menubar(menubar* bar, uint32_t x_w, uint32_t y_h, uint16_t sub_w, uint16_t sub_h, char **menutext,
+static inline menubar* kolibri_menubar(menubar* bar, uint32_t x_w, uint32_t y_h, uint16_t sub_w, uint16_t sub_h, char **menutext,
                                 color_t sel_font, color_t unsel_font, color_t top_bg, color_t top_select, color_t sub_bg, color_t sub_select)
 {
     static char procinfo[1024];