diff --git a/bsp/simulator/applications/application.c b/bsp/simulator/applications/application.c
index 500b7e6f2a..a01e8d91b7 100755
--- a/bsp/simulator/applications/application.c
+++ b/bsp/simulator/applications/application.c
@@ -16,8 +16,60 @@
 #include <stdio.h>
 #include <board.h>
 
-#include <components.h>
+#ifdef RT_USING_FINSH
+#include <finsh.h>
+#include <shell.h>
+#endif
 
+#ifdef RT_USING_LWIP
+#include <lwip/sys.h>
+#include <netif/ethernetif.h>
+extern void lwip_system_init(void);
+#endif
+
+#ifdef RT_USING_DFS
+#include <dfs_init.h>
+#include <dfs_fs.h>
+#ifdef RT_USING_DFS_ELMFAT
+#include <dfs_elm.h>
+#endif
+#if defined(RT_USING_LWIP) && defined(RT_USING_DFS_NFS)
+#include <dfs_nfs.h>
+#endif
+#ifdef RT_USING_DFS_ROMFS
+#include <dfs_romfs.h>
+#endif
+#ifdef RT_USING_DFS_DEVFS
+#include <devfs.h>
+#endif
+#ifdef RT_USING_DFS_UFFS
+#include <dfs_uffs.h>
+#endif
+#ifdef RT_USING_DFS_JFFS2
+#include <dfs_jffs2.h>
+#endif
+#ifdef RT_USING_DFS_YAFFS2
+#include <dfs_yaffs2.h>
+#endif
+#ifdef RT_USING_DFS_ROMFS
+#include <dfs_romfs.h>
+#endif
+#endif
+
+#ifdef RT_USING_NEWLIB
+#include <libc.h>
+#endif
+#ifdef RT_USING_PTHREADS
+#include <pthread.h>
+#endif
+
+#ifdef RT_USING_MODULE
+#include <rtm.h>
+#endif
+
+#ifdef RT_USING_RTGUI
+#include <rtgui/rtgui_system.h>
+#endif
 
 void rt_init_thread_entry(void *parameter)
 {
@@ -31,8 +83,81 @@ void rt_init_thread_entry(void *parameter)
 
     rt_platform_init();
 
-    /* initialization RT-Thread Components */
-    rt_components_init();
+#ifdef RT_USING_MODULE
+    rt_system_module_init();
+#endif
+
+#ifdef RT_USING_FINSH
+	/* initialize finsh */
+	finsh_system_init();
+	finsh_set_device(RT_CONSOLE_DEVICE_NAME);
+#endif
+
+#ifdef RT_USING_LWIP
+	/* initialize lwip stack */
+	/* register ethernetif device */
+	eth_system_device_init();
+
+	/* initialize lwip system */
+	lwip_system_init();
+	rt_kprintf("TCP/IP initialized!\n");
+#endif
+
+#ifdef RT_USING_DFS
+	/* initialize the device file system */
+	dfs_init();
+
+#ifdef RT_USING_DFS_ELMFAT
+	/* initialize the elm chan FatFS file system*/
+	elm_init();
+#endif
+
+#if defined(RT_USING_DFS_NFS) && defined(RT_USING_LWIP)
+	/* initialize NFSv3 client file system */
+	nfs_init();
+#endif
+
+#ifdef RT_USING_DFS_YAFFS2
+	dfs_yaffs2_init();
+#endif
+
+#ifdef RT_USING_DFS_UFFS
+	dfs_uffs_init();
+#endif
+
+#ifdef RT_USING_DFS_JFFS2
+	dfs_jffs2_init();
+#endif
+
+#ifdef RT_USING_DFS_ROMFS
+	dfs_romfs_init();
+#endif
+
+#ifdef RT_USING_DFS_RAMFS
+	dfs_ramfs_init();
+#endif
+
+#ifdef RT_USING_DFS_DEVFS
+	devfs_init();
+#endif
+#endif /* end of RT_USING_DFS */
+
+#ifdef RT_USING_NEWLIB
+	libc_system_init(RT_CONSOLE_DEVICE_NAME);
+#else
+	/* the pthread system initialization will be initiallized in libc */
+#ifdef RT_USING_PTHREADS 
+	pthread_system_init();
+#endif
+#endif
+
+#ifdef RT_USING_RTGUI
+	rtgui_system_server_init();
+#endif
+
+#ifdef RT_USING_USB_HOST
+	rt_usb_host_init();
+#endif
 
 #ifdef RT_USING_RTGUI
     /* start sdl thread to simulate an LCD. SDL may depend on DFS and should be
@@ -104,4 +229,4 @@ int rt_application_init()
     return 0;
 }
 
-/*@}*/
+/*@}*/
\ No newline at end of file
diff --git a/bsp/simulator/rtconfig.h b/bsp/simulator/rtconfig.h
index ce8c783547..a1f877de2e 100755
--- a/bsp/simulator/rtconfig.h
+++ b/bsp/simulator/rtconfig.h
@@ -98,9 +98,6 @@
 #define RT_CONSOLEBUF_SIZE	128
 #define RT_CONSOLE_DEVICE_NAME	"sci0"
 
-/* SECTION: component options */
-#define RT_USING_COMPONENTS_INIT
-
 /* SECTION: APP MODULE  */
 /* #define RT_USING_MODULE */
 
diff --git a/components/dfs/filesystems/uffs/SConscript b/components/dfs/filesystems/uffs/SConscript
index f822cf5d73..53f7713fc2 100644
--- a/components/dfs/filesystems/uffs/SConscript
+++ b/components/dfs/filesystems/uffs/SConscript
@@ -3,9 +3,36 @@
 from building import *
 
 cwd = GetCurrentDir()
+
 src = Glob('*.c')
+
+uffs = Split('''
+src/uffs/uffs_badblock.c
+src/uffs/uffs_blockinfo.c
+src/uffs/uffs_buf.c
+src/uffs/uffs_debug.c
+src/uffs/uffs_device.c
+src/uffs/uffs_ecc.c
+src/uffs/uffs_crc.c
+src/uffs/uffs_fd.c
+src/uffs/uffs_find.c
+src/uffs/uffs_flash.c
+src/uffs/uffs_fs.c
+src/uffs/uffs_init.c
+src/uffs/uffs_mem.c
+src/uffs/uffs_mtb.c
+src/uffs/uffs_pool.c
+src/uffs/uffs_public.c
+src/uffs/uffs_tree.c
+src/uffs/uffs_utils.c
+src/uffs/uffs_version.c
+
+''')
+
+src = src + uffs
+ 
 CPPPATH = [cwd, cwd + '/src/inc']
 
-group = DefineGroup('Filesystem', src, depend = ['RT_USING_DFS', 'RT_USING_DFS_UFFS'], CPPPATH = CPPPATH)
+group = DefineGroup('Filesystem', src , depend = ['RT_USING_DFS', 'RT_USING_DFS_UFFS'], CPPPATH = CPPPATH)
 
 Return('group')