diff --git a/bsp/simulator/applications/application.c b/bsp/simulator/applications/application.c
index 500b7e6f2a..1b62a9342a 100755
--- a/bsp/simulator/applications/application.c
+++ b/bsp/simulator/applications/application.c
@@ -31,8 +31,81 @@ 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
diff --git a/bsp/simulator/rtconfig.h b/bsp/simulator/rtconfig.h
index ce8c783547..1cd28ae5dd 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 */
 
@@ -136,7 +133,7 @@
 /* #define RT_USING_DFS_NFS */
 
 /* DFS: UFFS nand file system options */
-#define RT_USING_DFS_UFFS
+//#define RT_USING_DFS_UFFS
 /* configuration for uffs, more to see dfs_uffs.h and uffs_config.h */
 #define RT_CONFIG_UFFS_ECC_MODE  UFFS_ECC_HW_AUTO
 /* enable this ,you need provide a mark_badblock/check_block function */