diff --git a/src/ir_decoder/.gitignore b/src/ir_decoder/.gitignore
index 043a659..0b7df55 100644
--- a/src/ir_decoder/.gitignore
+++ b/src/ir_decoder/.gitignore
@@ -2,6 +2,7 @@ out/
 libs/
 obj/
 .idea/
+ipch/
 cmake-build-debug/
 cmake-build-release/
 Debug/
diff --git a/src/ir_decoder/include/irda_tv_parse_protocol.h b/src/ir_decoder/include/irda_tv_parse_protocol.h
index af54b7a..66bb0ef 100644
--- a/src/ir_decoder/include/irda_tv_parse_protocol.h
+++ b/src/ir_decoder/include/irda_tv_parse_protocol.h
@@ -194,12 +194,10 @@ typedef struct irda_data_tv
 } irda_data_tv_t;
 
 
-/*
- * export functions
- */
-
 extern INT8 tv_lib_open(UINT8* binary, UINT16 binary_length);
+
 extern BOOL tv_lib_parse(UINT8 encode_type);
+
 extern UINT16 tv_lib_control(UINT8 key, UINT16 *user_data);
 
 #ifdef __cplusplus
diff --git a/src/ir_decoder/ir_decode.def b/src/ir_decoder/ir_decode.def
new file mode 100644
index 0000000..1ccec99
--- /dev/null
+++ b/src/ir_decoder/ir_decode.def
@@ -0,0 +1,20 @@
+LIBRARY
+
+EXPORTS
+
+irda_context_init @1
+irda_ac_lib_open @2
+irda_ac_lib_parse @3
+irda_ac_lib_control @4
+irda_ac_lib_close @5
+irda_tv_lib_open @6
+irda_tv_lib_parse @7
+irda_tv_lib_control @8
+irda_tv_lib_close @9
+get_temperature_range @10
+get_supported_mode @11
+get_supported_wind_speed @12
+get_supported_swing @13
+get_supported_wind_direction @14
+irda_ac_file_open @15
+irda_tv_file_open @16
\ No newline at end of file
diff --git a/src/ir_decoder/ir_decoder.vcxproj b/src/ir_decoder/ir_decoder.vcxproj
index e710162..95dc334 100644
--- a/src/ir_decoder/ir_decoder.vcxproj
+++ b/src/ir_decoder/ir_decoder.vcxproj
@@ -28,7 +28,7 @@
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
     <ConfigurationType>DynamicLibrary</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v140_xp</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
@@ -92,6 +92,7 @@
     <Link>
       <SubSystem>Windows</SubSystem>
       <GenerateDebugInformation>true</GenerateDebugInformation>
+      <ModuleDefinitionFile>.\ir_decode.def</ModuleDefinitionFile>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
@@ -189,6 +190,9 @@
       <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Release|x64'">Create</PrecompiledHeader>
     </ClCompile>
   </ItemGroup>
+  <ItemGroup>
+    <None Include="ir_decode.def" />
+  </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>
diff --git a/src/ir_decoder/irda_decode.c b/src/ir_decoder/irda_decode.c
index f7ec188..779507c 100644
--- a/src/ir_decoder/irda_decode.c
+++ b/src/ir_decoder/irda_decode.c
@@ -324,6 +324,7 @@ INT8 irda_ac_lib_open(UINT8 *binary, UINT16 binary_length)
 
 INT8 irda_context_init()
 {
+	IR_PRINTF("init context");
     irda_memset(context, 0, sizeof(protocol));
     return IR_DECODE_SUCCEEDED;
 }
@@ -1027,6 +1028,11 @@ void irda_ac_lib_close()
         tags = NULL;
     }
     free_ac_context();
+
+	if (NULL != binary_content)
+	{
+		free(binary_content);
+	}
     return;
 }