diff --git a/bsp/simulator/applications/application.c b/bsp/simulator/applications/application.c
index cf84a1e116a4fc00cb8d78617467e19ae8d2e47d..a6c973983012f96d61e91fe8dc0219ef192767b4 100644
--- a/bsp/simulator/applications/application.c
+++ b/bsp/simulator/applications/application.c
@@ -16,7 +16,11 @@
 #include <stdio.h>
 #include <board.h>
 
+/* fix the compile errors for redefiniton of lwip_htonl in win socket */
+#ifdef _WIN32
+#undef RT_USING_LWIP
 #include <components.h>
+#endif
 
 void rt_init_thread_entry(void* parameter)
 {
diff --git a/bsp/simulator/rtconfig.h b/bsp/simulator/rtconfig.h
index 555da3cf187c081a4a5534b93ae83363ecbfa653..f12a644528af63da8df4dce056a426ee37a16bcb 100644
--- a/bsp/simulator/rtconfig.h
+++ b/bsp/simulator/rtconfig.h
@@ -109,7 +109,7 @@
 #define DFS_FD_MAX					4
 
 /* SECTION: lwip, a lighwight TCP/IP protocol stack */
-#define RT_USING_LWIP
+//#define RT_USING_LWIP
 /* LwIP uses RT-Thread Memory Management */
 #define RT_LWIP_USING_RT_MEM
 /* Enable ICMP protocol*/