diff --git a/osal/CMakeLists.txt b/osal/CMakeLists.txt
index c3a8e95f..32fdecc6 100644
--- a/osal/CMakeLists.txt
+++ b/osal/CMakeLists.txt
@@ -18,19 +18,25 @@ add_library(osal STATIC
 # On window import win32 pthread library
 # ----------------------------------------------------------------------------
 if(MSVC)
-    set(WIN32_PTHREAD_INCLUDE_DIRS window/pthread/inc)
+    set(WIN32_PTHREAD_INCLUDE_DIRS "${CMAKE_CURRENT_SOURCE_DIR}/window/pthread/inc")
     include_directories(${WIN32_PTHREAD_INCLUDE_DIRS})
     add_library(pthread STATIC IMPORTED)
     message(STATUS "platform X86 ${X86} X64 ${X64}")
+    set(WIN32_PTHREAD_LIB_DIRS "${CMAKE_CURRENT_SOURCE_DIR}/window/pthread/lib")
+    set(WIN32_PTHREAD_DLL_DIRS "${CMAKE_CURRENT_SOURCE_DIR}/window/pthread/dll")
     if(X64)
+    set(WIN32_ARCH "x64")
     set_target_properties(pthread PROPERTIES
                           IMPORTED_LOCATION
                           "${CMAKE_CURRENT_SOURCE_DIR}/window/pthread/lib/x64/pthreadVC2.lib")
 	else()
+    set(WIN32_ARCH "x86")
+    endif()
+    include_directories("${WIN32_PTHREAD_LIB_DIRS}/${WIN32_ARCH}")
+    include_directories("${WIN32_PTHREAD_DLL_DIRS}/${WIN32_ARCH}")
     set_target_properties(pthread PROPERTIES
                           IMPORTED_LOCATION
-                          "${CMAKE_CURRENT_SOURCE_DIR}/window/pthread/lib/x86/pthreadVC2.lib")
-    endif()
+                          "${WIN32_PTHREAD_LIB_DIRS}/${WIN32_ARCH}/pthreadVC2.lib")
 endif()
 target_link_libraries(osal pthread)
 install(TARGETS osal
diff --git a/osal/inc/rk_thread.h b/osal/inc/rk_thread.h
index 4e34d7f1..b4cf4d02 100644
--- a/osal/inc/rk_thread.h
+++ b/osal/inc/rk_thread.h
@@ -33,6 +33,7 @@
 #include <windows.h>
 #include "pthread.h"
 #define sleep                   Sleep
+#pragma comment(lib, "pthreadVC2.lib")
 
 #else
 
diff --git a/readme.txt b/readme.txt
index c9f3699b..da8fb7a7 100644
--- a/readme.txt
+++ b/readme.txt
@@ -14,6 +14,9 @@ c. header file should not contain any relative path or absolute path, all includ
 a. for cross platform compiling use cmake as the compiling management system.
 b. use cmake out-of-source build, final binary and library will be install to out/ directory.
 
+NOTE:
+1. when run on window pthreadVC2.dll needed to be copied to the system directory.
+
 ----                     top
    |
    |----- build          CMake out-of-source build directory