diff --git a/.gitea/workflows/release.yaml b/.gitea/workflows/release.yaml
index a692fc8..d5819f0 100644
--- a/.gitea/workflows/release.yaml
+++ b/.gitea/workflows/release.yaml
@@ -23,12 +23,17 @@ jobs:
       - name: Build Release
         run: dotnet build --configuration Release --no-restore
 
-      - name: Publish
-        run: dotnet publish DellMonitorControl/DellMonitorControl.csproj -c Release -o ./publish --self-contained false
-
-      - name: Create ZIP archive
-        run: Compress-Archive -Path ./publish/* -DestinationPath ./MonitorControl-${{ gitea.ref_name }}.zip
+      - name: Update version in ISS
         shell: powershell
+        run: |
+          $version = "${{ gitea.ref_name }}".TrimStart("v")
+          $issPath = "DellMonitorControl/MonitorControl.iss"
+          (Get-Content $issPath) -replace '#define MyAppVersion ".*"', "#define MyAppVersion `"$version`"" | Set-Content $issPath
+
+      - name: Build Installer
+        shell: cmd
+        run: |
+          "C:\Program Files (x86)\Inno Setup 6\ISCC.exe" DellMonitorControl\MonitorControl.iss
 
       - name: Create Release
         shell: powershell
@@ -36,6 +41,7 @@ jobs:
           GITEA_TOKEN: ${{ secrets.RELEASE_TOKEN }}
         run: |
           $tag = "${{ gitea.ref_name }}"
+          $version = $tag.TrimStart("v")
           $repo = "misc/ControlMyMonitorManagement"
           $baseUrl = "https://git.marketally.com/api/v1"
 
@@ -51,7 +57,7 @@ jobs:
             $body = @{
               tag_name = $tag
               name = "Monitor Control $tag"
-              body = "## Monitor Control $tag`n`n### Installation`n1. Download the ZIP file`n2. Extract to a folder`n3. Run DellMonitorControl.exe`n`n### Requirements`n- Windows 10/11`n- .NET 9.0 Runtime"
+              body = "## Monitor Control $tag`n`n### Installation`nDownload and run the installer.`n`n### Features`n- System tray monitor control`n- Brightness/Contrast adjustment`n- Input source switching`n- Quick-switch toolbar`n`n### Requirements`n- Windows 10/11`n- .NET 9.0 Runtime"
             } | ConvertTo-Json
 
             $release = Invoke-RestMethod -Uri "$baseUrl/repos/$repo/releases" -Method Post -Headers @{"Authorization"="token $env:GITEA_TOKEN"; "Content-Type"="application/json"} -Body $body
@@ -59,11 +65,11 @@ jobs:
             Write-Host "Release created with ID: $releaseId"
           }
 
-          # Upload asset using curl (more reliable for file uploads)
-          $filePath = "./MonitorControl-$tag.zip"
-          $fileName = "MonitorControl-$tag.zip"
+          # Upload installer
+          $filePath = "DellMonitorControl/installer/MonitorControl-Setup-$version.exe"
+          $fileName = "MonitorControl-Setup-$version.exe"
           Write-Host "Uploading $fileName..."
 
           curl.exe -X POST -H "Authorization: token $env:GITEA_TOKEN" -F "attachment=@$filePath" "$baseUrl/repos/$repo/releases/$releaseId/assets?name=$fileName"
 
-          Write-Host "Asset uploaded successfully"
+          Write-Host "Installer uploaded successfully"
diff --git a/.gitignore b/.gitignore
index 8f66922..e4dfaf2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -365,5 +365,5 @@ FodyWeavers.xsd
 # Claude Code
 .claude/
 
-# Windows special files
-nul
\ No newline at end of file
+# Inno Setup output
+DellMonitorControl/installer/
diff --git a/DellMonitorControl/MonitorControl.iss b/DellMonitorControl/MonitorControl.iss
new file mode 100644
index 0000000..384a7b6
--- /dev/null
+++ b/DellMonitorControl/MonitorControl.iss
@@ -0,0 +1,39 @@
+#define MyAppName "Monitor Control"
+#define MyAppVersion "1.0.0"
+#define MyAppPublisher "Dang"
+#define MyAppExeName "DellMonitorControl.exe"
+
+[Setup]
+AppId={{8F3E4A2B-1C5D-4E6F-9A8B-7C2D1E3F4A5B}
+AppName={#MyAppName}
+AppVersion={#MyAppVersion}
+AppPublisher={#MyAppPublisher}
+DefaultDirName={autopf}\{#MyAppName}
+DefaultGroupName={#MyAppName}
+AllowNoIcons=yes
+OutputDir=installer
+OutputBaseFilename=MonitorControl-Setup-{#MyAppVersion}
+Compression=lzma
+SolidCompression=yes
+WizardStyle=modern
+PrivilegesRequired=admin
+UninstallDisplayIcon={app}\{#MyAppExeName}
+
+[Languages]
+Name: "english"; MessagesFile: "compiler:Default.isl"
+
+[Tasks]
+Name: "desktopicon"; Description: "{cm:CreateDesktopIcon}"; GroupDescription: "{cm:AdditionalIcons}"; Flags: unchecked
+Name: "startupicon"; Description: "Start with Windows"; GroupDescription: "Startup:"
+
+[Files]
+Source: "bin\Release\net9.0-windows\*"; DestDir: "{app}"; Flags: ignoreversion recursesubdirs createallsubdirs
+
+[Icons]
+Name: "{group}\{#MyAppName}"; Filename: "{app}\{#MyAppExeName}"
+Name: "{group}\Uninstall {#MyAppName}"; Filename: "{uninstallexe}"
+Name: "{autodesktop}\{#MyAppName}"; Filename: "{app}\{#MyAppExeName}"; Tasks: desktopicon
+Name: "{userstartup}\{#MyAppName}"; Filename: "{app}\{#MyAppExeName}"; Tasks: startupicon
+
+[Run]
+Filename: "{app}\{#MyAppExeName}"; Description: "{cm:LaunchProgram,{#StringChange(MyAppName, '&', '&&')}}"; Flags: nowait postinstall skipifsilent