diff --git a/Installer/NetRuntime.cs b/Installer/NetRuntime.cs
index 77d72d3..5fb8176 100644
--- a/Installer/NetRuntime.cs
+++ b/Installer/NetRuntime.cs
@@ -5,7 +5,6 @@ using System.IO;
using System.Net;
using System.Reflection;
using System.Security.Cryptography;
-using System.ServiceProcess;
using Microsoft.Win32;
using NewLife;
using NewLife.Log;
diff --git a/Installer45/app.manifest b/Installer45/app.manifest
new file mode 100644
index 0000000..2e0ad7a
--- /dev/null
+++ b/Installer45/app.manifest
@@ -0,0 +1,79 @@
+<?xml version="1.0" encoding="utf-8"?>
+<assembly manifestVersion="1.0" xmlns="urn:schemas-microsoft-com:asm.v1">
+ <assemblyIdentity version="1.0.0.0" name="MyApplication.app"/>
+ <trustInfo xmlns="urn:schemas-microsoft-com:asm.v2">
+ <security>
+ <requestedPrivileges xmlns="urn:schemas-microsoft-com:asm.v3">
+ <!-- UAC 清单选项
+ 如果想要更改 Windows 用户帐户控制级别，请使用
+ 以下节点之一替换 requestedExecutionLevel 节点。
+
+ <requestedExecutionLevel level="asInvoker" uiAccess="false" />
+ <requestedExecutionLevel level="requireAdministrator" uiAccess="false" />
+ <requestedExecutionLevel level="highestAvailable" uiAccess="false" />
+
+ 指定 requestedExecutionLevel 元素将禁用文件和注册表虚拟化。
+ 如果你的应用程序需要此虚拟化来实现向后兼容性，则移除此
+ 元素。
+ -->
+ <requestedExecutionLevel level="asInvoker" uiAccess="false" />
+ </requestedPrivileges>
+ </security>
+ </trustInfo>
+
+ <compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">
+ <application>
+ <!-- 设计此应用程序与其一起工作且已针对此应用程序进行测试的
+ Windows 版本的列表。取消评论适当的元素，
+ Windows 将自动选择最兼容的环境。 -->
+
+ <!-- Windows Vista -->
+ <supportedOS Id="{e2011457-1546-43c5-a5fe-008deee3d3f0}" />
+
+ <!-- Windows 7 -->
+ <supportedOS Id="{35138b9a-5d96-4fbd-8e2d-a2440225f93a}" />
+
+ <!-- Windows 8 -->
+ <supportedOS Id="{4a2f28e3-53b9-4441-ba9c-d69d4a4a6e38}" />
+
+ <!-- Windows 8.1 -->
+ <supportedOS Id="{1f676c76-80e1-4239-95bb-83d0f6d0da78}" />
+
+ <!-- Windows 10 -->
+ <supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}" />
+
+ </application>
+ </compatibility>
+
+ <!-- 指示该应用程序可感知 DPI 且 Windows 在 DPI 较高时将不会对其进行
+ 自动缩放。Windows Presentation Foundation (WPF)应用程序自动感知 DPI，无需
+ 选择加入。选择加入此设置的 Windows 窗体应用程序(面向 .NET Framework 4.6)还应
+ 在其 app.config 中将 "EnableWindowsFormsHighDpiAutoResizing" 设置设置为 "true"。
+
+ 将应用程序设为感知长路径。请参阅 https://docs.microsoft.com/windows/win32/fileio/maximum-file-path-limitation -->
+
+ <application xmlns="urn:schemas-microsoft-com:asm.v3">
+ <windowsSettings>
+ <dpiAware xmlns="http://schemas.microsoft.com/SMI/2005/WindowsSettings">true</dpiAware>
+ <longPathAware xmlns="http://schemas.microsoft.com/SMI/2016/WindowsSettings">true</longPathAware>
+ </windowsSettings>
+ </application>
+
+
+ <!-- 启用 Windows 公共控件和对话框的主题(Windows XP 和更高版本) -->
+ <!--
+ <dependency>
+ <dependentAssembly>
+ <assemblyIdentity
+ type="win32"
+ name="Microsoft.Windows.Common-Controls"
+ version="6.0.0.0"
+ processorArchitecture="*"
+ publicKeyToken="6595b64144ccf1df"
+ language="*"
+ />
+ </dependentAssembly>
+ </dependency>
+ -->
+
+</assembly>
diff --git a/Installer45/Installer45.csproj b/Installer45/Installer45.csproj
new file mode 100644
index 0000000..0e3411c
--- /dev/null
+++ b/Installer45/Installer45.csproj
@@ -0,0 +1,63 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+ <PropertyGroup>
+ <OutputType>WinExe</OutputType>
+ <TargetFramework>net45</TargetFramework>
+ <AssemblyName>LuckyClover</AssemblyName>
+ <RootNamespace>Installer</RootNamespace>
+ <AssemblyTitle>dotNet安装助手（新生命团队）</AssemblyTitle>
+ <Description>检测并安装主流dotNet运行时，作为应用系统安装前置检测工具</Description>
+ <Company>新生命开发团队</Company>
+ <Copyright>©2002-2024 NewLife</Copyright>
+ <VersionPrefix>1.2</VersionPrefix>
+ <VersionSuffix>$([System.DateTime]::Now.ToString(`yyyy.MMdd`))</VersionSuffix>
+ <Version>$(VersionPrefix).$(VersionSuffix)</Version>
+ <FileVersion>$(Version)</FileVersion>
+ <AssemblyVersion>$(VersionPrefix).*</AssemblyVersion>
+ <Deterministic>false</Deterministic>
+ <OutputPath>..\Bin\Installer45</OutputPath>
+ <AppendTargetFrameworkToOutputPath>false</AppendTargetFrameworkToOutputPath>
+ <ImplicitUsings>enable</ImplicitUsings>
+ <LangVersion>latest</LangVersion>
+ <UseWindowsForms>true</UseWindowsForms>
+ <PlatformTarget>AnyCPU</PlatformTarget>
+ <AllowUnsafeBlocks>True</AllowUnsafeBlocks>
+ <ApplicationManifest>app.manifest</ApplicationManifest>
+ </PropertyGroup>
+
+ <ItemGroup>
+ <Compile Include="..\Installer4\Program.cs" Link="Program.cs" />
+ <Compile Include="..\Installer4\Setting.cs" Link="Setting.cs" />
+ <Compile Include="..\Installer\Advapi32.cs" Link="Advapi32.cs" />
+ <Compile Include="..\Installer\DownloadHelper.cs" Link="DownloadHelper.cs" />
+ <Compile Include="..\Installer\FrmMain.cs" Link="FrmMain.cs" />
+ <Compile Include="..\Installer\FrmMain.Designer.cs" Link="FrmMain.Designer.cs" />
+ <Compile Include="..\Installer\Helper.cs" Link="Helper.cs" />
+ <Compile Include="..\Installer\NetRuntime.cs" Link="NetRuntime.cs" />
+ <Compile Include="..\Installer\VerInfo.cs" Link="VerInfo.cs" />
+ <Compile Include="..\Installer\WindowsService.cs" Link="WindowsService.cs" />
+ </ItemGroup>
+
+ <ItemGroup>
+ <EmbeddedResource Include="..\LuckyClover\res\md5.txt" Link="res\md5.txt" />
+ </ItemGroup>
+
+ <ItemGroup>
+ <EmbeddedResource Include="..\Installer\FrmMain.resx" Link="FrmMain.resx" />
+ </ItemGroup>
+
+ <ItemGroup>
+ <PackageReference Include="NewLife.Core" Version="10.8.2024.303" />
+ <PackageReference Include="NewLife.Stardust" Version="2.9.2024.218" />
+ </ItemGroup>
+
+ <ItemGroup>
+ <Folder Include="res\" />
+ </ItemGroup>
+
+ <ItemGroup>
+ <EmbeddedResource Include="..\LuckyClover\res\CertMgr.Exe" Link="res\CertMgr.Exe" />
+ <EmbeddedResource Include="..\LuckyClover\res\MicrosoftRootCertificateAuthority2011.cer" Link="res\MicrosoftRootCertificateAuthority2011.cer" />
+ </ItemGroup>
+
+</Project>
\ No newline at end of file
diff --git a/LuckyClover.sln b/LuckyClover.sln
index 1d1f1c5..556ead4 100644
--- a/LuckyClover.sln
+++ b/LuckyClover.sln
@@ -18,6 +18,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Installer", "Installer\Inst
EndProject
Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Installer4", "Installer4\Installer4.csproj", "{6E9F5946-AA92-4B5C-9FBD-5DCB68D6B47D}"
EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Installer45", "Installer45\Installer45.csproj", "{F069422D-992B-4979-922A-D29C19673570}"
+EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|Any CPU = Debug|Any CPU
@@ -142,6 +144,26 @@ Global
{6E9F5946-AA92-4B5C-9FBD-5DCB68D6B47D}.Release|x64.Build.0 = Release|Any CPU
{6E9F5946-AA92-4B5C-9FBD-5DCB68D6B47D}.Release|x86.ActiveCfg = Release|Any CPU
{6E9F5946-AA92-4B5C-9FBD-5DCB68D6B47D}.Release|x86.Build.0 = Release|Any CPU
+ {F069422D-992B-4979-922A-D29C19673570}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+ {F069422D-992B-4979-922A-D29C19673570}.Debug|Any CPU.Build.0 = Debug|Any CPU
+ {F069422D-992B-4979-922A-D29C19673570}.Debug|ARM.ActiveCfg = Debug|Any CPU
+ {F069422D-992B-4979-922A-D29C19673570}.Debug|ARM.Build.0 = Debug|Any CPU
+ {F069422D-992B-4979-922A-D29C19673570}.Debug|ARM64.ActiveCfg = Debug|Any CPU
+ {F069422D-992B-4979-922A-D29C19673570}.Debug|ARM64.Build.0 = Debug|Any CPU
+ {F069422D-992B-4979-922A-D29C19673570}.Debug|x64.ActiveCfg = Debug|Any CPU
+ {F069422D-992B-4979-922A-D29C19673570}.Debug|x64.Build.0 = Debug|Any CPU
+ {F069422D-992B-4979-922A-D29C19673570}.Debug|x86.ActiveCfg = Debug|Any CPU
+ {F069422D-992B-4979-922A-D29C19673570}.Debug|x86.Build.0 = Debug|Any CPU
+ {F069422D-992B-4979-922A-D29C19673570}.Release|Any CPU.ActiveCfg = Release|Any CPU
+ {F069422D-992B-4979-922A-D29C19673570}.Release|Any CPU.Build.0 = Release|Any CPU
+ {F069422D-992B-4979-922A-D29C19673570}.Release|ARM.ActiveCfg = Release|Any CPU
+ {F069422D-992B-4979-922A-D29C19673570}.Release|ARM.Build.0 = Release|Any CPU
+ {F069422D-992B-4979-922A-D29C19673570}.Release|ARM64.ActiveCfg = Release|Any CPU
+ {F069422D-992B-4979-922A-D29C19673570}.Release|ARM64.Build.0 = Release|Any CPU
+ {F069422D-992B-4979-922A-D29C19673570}.Release|x64.ActiveCfg = Release|Any CPU
+ {F069422D-992B-4979-922A-D29C19673570}.Release|x64.Build.0 = Release|Any CPU
+ {F069422D-992B-4979-922A-D29C19673570}.Release|x86.ActiveCfg = Release|Any CPU
+ {F069422D-992B-4979-922A-D29C19673570}.Release|x86.Build.0 = Release|Any CPU
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE