diff --git a/CMakeLists.txt b/CMakeLists.txt
index b51a24b56f7355859121b31d3f44ef6d33de4ac1..90404fb908a4829ee212f44a1602ccdf788b01ef 100755
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -8,8 +8,6 @@ add_definitions ("-DNODE_NETNAME=\"kelvin\"")
 
 if(WIN32)
   include_directories(../libdap/src/win32/)
-  include_directories(../3rdparty/libmemcached/)
-  include_directories(../3rdparty/libmemcached/win32/)
   include_directories(../3rdparty/wepoll/include/)
   include_directories(../3rdparty/uthash/src/)
   include_directories(../3rdparty/libjson-c/)
diff --git a/client_mempool.c b/client_mempool.c
index ae50a2d6e255c1d289c07dd70d9269ebc1469ee8..e4ec2670245ff4317d573b5e4fd91cc27b756eb2 100755
--- a/client_mempool.c
+++ b/client_mempool.c
@@ -30,15 +30,12 @@
 #include <errno.h>
 
 #ifdef _WIN32
-#undef _WIN32_WINNT
-#define _WIN32_WINNT 0x0600
 #include <winsock2.h>
 #include <windows.h>
 #include <mswsock.h>
 #include <ws2tcpip.h>
 #include <io.h>
 #include <time.h>
-#include <wepoll.h>
 #include <pthread.h>
 #endif
 
diff --git a/dap_chain_mempool.c b/dap_chain_mempool.c
index 6eb5ce839e2cb50def0b72e58c9ee4024f3026fc..fef66ce7f20f5cc28d23a2f8f60899b0bc159ea8 100755
--- a/dap_chain_mempool.c
+++ b/dap_chain_mempool.c
@@ -30,15 +30,12 @@
 #include <memory.h>
 
 #ifdef _WIN32
-#undef _WIN32_WINNT
-#define _WIN32_WINNT 0x0600
 #include <winsock2.h>
 #include <windows.h>
 #include <mswsock.h>
 #include <ws2tcpip.h>
 #include <io.h>
 #include <time.h>
-#include <wepoll.h>
 #include <pthread.h>
 #endif