diff --git a/wufuc.sln b/wufuc.sln
index 5bf4d49..366577a 100644
--- a/wufuc.sln
+++ b/wufuc.sln
@@ -1,7 +1,7 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio 15
-VisualStudioVersion = 15.0.26730.15
+VisualStudioVersion = 15.0.26730.16
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "wufuc", "wufuc\wufuc.vcxproj", "{00F96695-CE41-4C2F-A344-6219DFB4F887}"
 EndProject
@@ -14,8 +14,6 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution
 		README.md = README.md
 	EndProjectSection
 EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "wufuc_aihelper", "wufuc_aihelper\wufuc_aihelper.vcxproj", "{C1AE00F8-D223-4462-B6A8-5A5D138A5D1F}"
-EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|x64 = Debug|x64
@@ -32,14 +30,6 @@ Global
 		{00F96695-CE41-4C2F-A344-6219DFB4F887}.Release|x64.Build.0 = Release|x64
 		{00F96695-CE41-4C2F-A344-6219DFB4F887}.Release|x86.ActiveCfg = Release|Win32
 		{00F96695-CE41-4C2F-A344-6219DFB4F887}.Release|x86.Build.0 = Release|Win32
-		{C1AE00F8-D223-4462-B6A8-5A5D138A5D1F}.Debug|x64.ActiveCfg = Debug|x64
-		{C1AE00F8-D223-4462-B6A8-5A5D138A5D1F}.Debug|x64.Build.0 = Debug|x64
-		{C1AE00F8-D223-4462-B6A8-5A5D138A5D1F}.Debug|x86.ActiveCfg = Debug|Win32
-		{C1AE00F8-D223-4462-B6A8-5A5D138A5D1F}.Debug|x86.Build.0 = Debug|Win32
-		{C1AE00F8-D223-4462-B6A8-5A5D138A5D1F}.Release|x64.ActiveCfg = Release|x64
-		{C1AE00F8-D223-4462-B6A8-5A5D138A5D1F}.Release|x64.Build.0 = Release|x64
-		{C1AE00F8-D223-4462-B6A8-5A5D138A5D1F}.Release|x86.ActiveCfg = Release|Win32
-		{C1AE00F8-D223-4462-B6A8-5A5D138A5D1F}.Release|x86.Build.0 = Release|Win32
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
diff --git a/wufuc_aihelper/aihelper.c b/wufuc_aihelper/aihelper.c
deleted file mode 100644
index 80ac186..0000000
--- a/wufuc_aihelper/aihelper.c
+++ /dev/null
@@ -1,12 +0,0 @@
-#include <Windows.h>
-#include <Msiquery.h>
-#include <tchar.h>
-
-UINT __stdcall AIHelper_SetUnloadEvent(MSIHANDLE hInstall) {
-    HANDLE hEvent = OpenEvent(EVENT_MODIFY_STATE, FALSE, _T("Global\\wufuc_UnloadEvent"));
-    if ( hEvent ) {
-        SetEvent(hEvent);
-        CloseHandle(hEvent);
-    }
-    return 1;
-}
diff --git a/wufuc_aihelper/dllmain.c b/wufuc_aihelper/dllmain.c
deleted file mode 100644
index b72b423..0000000
--- a/wufuc_aihelper/dllmain.c
+++ /dev/null
@@ -1,13 +0,0 @@
-#include <Windows.h>
-
-BOOL APIENTRY DllMain(HMODULE hModule, DWORD ul_reason_for_call, LPVOID lpReserved) {
-    switch ( ul_reason_for_call ) {
-    case DLL_PROCESS_ATTACH:
-        break;
-    case DLL_PROCESS_DETACH:
-        break;
-    default:
-        break;
-    }
-    return TRUE;
-}
diff --git a/wufuc_aihelper/wufuc_aihelper.def b/wufuc_aihelper/wufuc_aihelper.def
deleted file mode 100644
index f4045dc..0000000
--- a/wufuc_aihelper/wufuc_aihelper.def
+++ /dev/null
@@ -1,2 +0,0 @@
-EXPORTS
-    AIHelper_SetUnloadEvent
diff --git a/wufuc_aihelper/wufuc_aihelper.vcxproj b/wufuc_aihelper/wufuc_aihelper.vcxproj
deleted file mode 100644
index d68dd78..0000000
--- a/wufuc_aihelper/wufuc_aihelper.vcxproj
+++ /dev/null
@@ -1,169 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <ItemGroup Label="ProjectConfigurations">
-    <ProjectConfiguration Include="Debug|Win32">
-      <Configuration>Debug</Configuration>
-      <Platform>Win32</Platform>
-    </ProjectConfiguration>
-    <ProjectConfiguration Include="Release|Win32">
-      <Configuration>Release</Configuration>
-      <Platform>Win32</Platform>
-    </ProjectConfiguration>
-    <ProjectConfiguration Include="Debug|x64">
-      <Configuration>Debug</Configuration>
-      <Platform>x64</Platform>
-    </ProjectConfiguration>
-    <ProjectConfiguration Include="Release|x64">
-      <Configuration>Release</Configuration>
-      <Platform>x64</Platform>
-    </ProjectConfiguration>
-  </ItemGroup>
-  <PropertyGroup Label="Globals">
-    <VCProjectVersion>15.0</VCProjectVersion>
-    <ProjectGuid>{C1AE00F8-D223-4462-B6A8-5A5D138A5D1F}</ProjectGuid>
-    <Keyword>Win32Proj</Keyword>
-    <RootNamespace>wufuc_aihelper</RootNamespace>
-    <WindowsTargetPlatformVersion>10.0.15063.0</WindowsTargetPlatformVersion>
-  </PropertyGroup>
-  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
-    <ConfigurationType>DynamicLibrary</ConfigurationType>
-    <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v141</PlatformToolset>
-    <CharacterSet>Unicode</CharacterSet>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
-    <ConfigurationType>DynamicLibrary</ConfigurationType>
-    <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v141</PlatformToolset>
-    <WholeProgramOptimization>true</WholeProgramOptimization>
-    <CharacterSet>Unicode</CharacterSet>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
-    <ConfigurationType>DynamicLibrary</ConfigurationType>
-    <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v141</PlatformToolset>
-    <CharacterSet>Unicode</CharacterSet>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
-    <ConfigurationType>DynamicLibrary</ConfigurationType>
-    <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v141</PlatformToolset>
-    <WholeProgramOptimization>true</WholeProgramOptimization>
-    <CharacterSet>Unicode</CharacterSet>
-  </PropertyGroup>
-  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
-  <ImportGroup Label="ExtensionSettings">
-  </ImportGroup>
-  <ImportGroup Label="Shared">
-  </ImportGroup>
-  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
-    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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-  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
-    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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-  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
-    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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-  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
-    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
-  </ImportGroup>
-  <PropertyGroup Label="UserMacros" />
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
-    <LinkIncremental>false</LinkIncremental>
-    <OutDir>$(ProjectDir)bin\$(Configuration)\$(PlatformShortName)\</OutDir>
-    <IntDir>$(ProjectDir)$(BaseIntermediateOutputPath)$(Configuration)\$(PlatformShortName)\</IntDir>
-    <TargetName>$(ProjectName)</TargetName>
-    <GenerateManifest>false</GenerateManifest>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
-    <LinkIncremental>true</LinkIncremental>
-    <OutDir>$(ProjectDir)bin\$(Configuration)\$(PlatformShortName)\</OutDir>
-    <IntDir>$(ProjectDir)$(BaseIntermediateOutputPath)$(Configuration)\$(PlatformShortName)\</IntDir>
-    <TargetName>$(ProjectName)</TargetName>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
-    <LinkIncremental>true</LinkIncremental>
-    <OutDir>$(ProjectDir)bin\$(Configuration)\$(PlatformShortName)\</OutDir>
-    <IntDir>$(ProjectDir)$(BaseIntermediateOutputPath)$(Configuration)\$(PlatformShortName)\</IntDir>
-    <TargetName>$(ProjectName)</TargetName>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
-    <LinkIncremental>false</LinkIncremental>
-    <OutDir>$(ProjectDir)bin\$(Configuration)\$(PlatformShortName)\</OutDir>
-    <IntDir>$(ProjectDir)$(BaseIntermediateOutputPath)$(Configuration)\$(PlatformShortName)\</IntDir>
-    <TargetName>$(ProjectName)</TargetName>
-    <GenerateManifest>false</GenerateManifest>
-  </PropertyGroup>
-  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
-    <ClCompile>
-      <WarningLevel>Level3</WarningLevel>
-      <Optimization>MaxSpeed</Optimization>
-      <FunctionLevelLinking>true</FunctionLevelLinking>
-      <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;_USRDLL;WUFUC_AIHELPER_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
-    </ClCompile>
-    <Link>
-      <SubSystem>Windows</SubSystem>
-      <EnableCOMDATFolding>true</EnableCOMDATFolding>
-      <OptimizeReferences>true</OptimizeReferences>
-      <AdditionalDependencies>Msi.lib;%(AdditionalDependencies)</AdditionalDependencies>
-      <GenerateDebugInformation>false</GenerateDebugInformation>
-      <ModuleDefinitionFile>wufuc_aihelper.def</ModuleDefinitionFile>
-    </Link>
-  </ItemDefinitionGroup>
-  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
-    <ClCompile>
-      <WarningLevel>Level3</WarningLevel>
-      <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>WIN32;_DEBUG;_WINDOWS;_USRDLL;WUFUC_AIHELPER_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
-    </ClCompile>
-    <Link>
-      <SubSystem>Windows</SubSystem>
-      <ModuleDefinitionFile>wufuc_aihelper.def</ModuleDefinitionFile>
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-  </ItemDefinitionGroup>
-  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
-    <ClCompile>
-      <WarningLevel>Level3</WarningLevel>
-      <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>_DEBUG;_WINDOWS;_USRDLL;WUFUC_AIHELPER_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
-    </ClCompile>
-    <Link>
-      <SubSystem>Windows</SubSystem>
-      <ModuleDefinitionFile>wufuc_aihelper.def</ModuleDefinitionFile>
-    </Link>
-  </ItemDefinitionGroup>
-  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
-    <ClCompile>
-      <WarningLevel>Level3</WarningLevel>
-      <Optimization>MaxSpeed</Optimization>
-      <FunctionLevelLinking>true</FunctionLevelLinking>
-      <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>NDEBUG;_WINDOWS;_USRDLL;WUFUC_AIHELPER_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
-    </ClCompile>
-    <Link>
-      <SubSystem>Windows</SubSystem>
-      <EnableCOMDATFolding>true</EnableCOMDATFolding>
-      <OptimizeReferences>true</OptimizeReferences>
-      <AdditionalDependencies>Msi.lib;%(AdditionalDependencies)</AdditionalDependencies>
-      <GenerateDebugInformation>false</GenerateDebugInformation>
-      <ModuleDefinitionFile>wufuc_aihelper.def</ModuleDefinitionFile>
-    </Link>
-  </ItemDefinitionGroup>
-  <ItemGroup>
-    <ClCompile Include="aihelper.c" />
-    <ClCompile Include="dllmain.c" />
-  </ItemGroup>
-  <ItemGroup>
-    <None Include="wufuc_aihelper.def" />
-  </ItemGroup>
-  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
-  <ImportGroup Label="ExtensionTargets">
-  </ImportGroup>
-</Project>
\ No newline at end of file