Hide uninstall button for plugins that are not installed

.github/workflows/release.yml

@@ -120,7 +120,7 @@ jobs:
             -DPLUGIN_VERSION_OVERRIDE="${{ steps.version.outputs.version }}"
           cmake --build build --config RelWithDebInfo
 
-      - name: Package
+      - name: Package ZIP
         shell: powershell
         run: |
           $ver = "${{ steps.version.outputs.version }}"
@@ -130,11 +130,21 @@ jobs:
           Copy-Item "build/st-pluginmanager.dll" "$dir/obs-plugins/64bit/"
           Compress-Archive -Path "$dir/*" -DestinationPath "release/st-pluginmanager-$ver-windows-x64.zip"
 
+      - name: Build installer
+        shell: powershell
+        run: |
+          choco install innosetup -y --no-progress | Out-Null
+          $ver = "${{ steps.version.outputs.version }}"
+          & "C:\Program Files (x86)\Inno Setup 6\iscc.exe" `
+            /DMyAppVersion=$ver installer/installer.iss
+
       - name: Upload artifacts
         uses: actions/upload-artifact@v6
         with:
           name: windows-release
-          path: release/*
+          path: |
+            release/*
+            installer/release/*
 
   build-linux:
     runs-on: ubuntu-24.04
@@ -240,7 +250,12 @@ jobs:
           body: |
             ## Installation
 
-            ### Windows
+            ### Windows (Installer — recommended)
+            1. Download **`st-pluginmanager-${{ steps.version.outputs.version }}-windows-installer.exe`**
+            2. Run the installer — it auto-detects your OBS installation
+            3. Restart OBS
+
+            ### Windows (Manual)
             1. Download **`st-pluginmanager-${{ steps.version.outputs.version }}-windows-x64.zip`**
             2. Extract into your OBS Studio folder (e.g. `C:\Program Files\obs-studio\`)
             3. Restart OBS

installer/installer.iss

@@ -0,0 +1,65 @@
+#ifndef MyAppVersion
+  #define MyAppVersion "dev"
+#endif
+
+#define MyAppName "stools Plugin Manager"
+#define MyAppPublisher "stools.cc"
+#define MyAppURL "https://stools.cc"
+
+[Setup]
+AppId={{F7A2C8E1-9B34-4D56-A1E3-7C8F5D2B0A91}
+AppName={#MyAppName} (OBS Plugin)
+AppVersion={#MyAppVersion}
+AppPublisher={#MyAppPublisher}
+AppPublisherURL={#MyAppURL}
+DefaultDirName={code:GetOBSDir}
+DirExistsWarning=no
+DisableProgramGroupPage=yes
+OutputDir=release
+OutputBaseFilename=st-pluginmanager-{#MyAppVersion}-windows-installer
+Compression=lzma2
+SolidCompression=yes
+WizardStyle=modern
+ArchitecturesAllowed=x64os
+ArchitecturesInstallIn64BitMode=x64os
+PrivilegesRequired=admin
+UninstallDisplayName={#MyAppName} (OBS Plugin)
+SourceDir=..
+
+[Languages]
+Name: "english"; MessagesFile: "compiler:Default.isl"
+Name: "german"; MessagesFile: "compiler:Languages\German.isl"
+
+[Files]
+Source: "build\st-pluginmanager.dll"; DestDir: "{app}\obs-plugins\64bit"; Flags: ignoreversion
+
+[UninstallDelete]
+Type: files; Name: "{app}\obs-plugins\64bit\st-pluginmanager.dll"
+Type: files; Name: "{app}\obs-plugins\64bit\.st-pluginmanager.version"
+
+[Messages]
+english.WelcomeLabel2=This will install the {#MyAppName} plugin for OBS Studio.%n%nPlease close OBS Studio before continuing.
+german.WelcomeLabel2=Dies installiert das {#MyAppName} Plugin f%C3%BCr OBS Studio.%n%nBitte schlie%C3%9Fe OBS Studio vor der Installation.
+
+[Code]
+function GetOBSDir(Param: String): String;
+var
+  Path: String;
+begin
+  if RegQueryStringValue(HKLM, 'SOFTWARE\OBS Studio', '', Path) then
+    Result := Path
+  else
+    Result := ExpandConstant('{autopf}\obs-studio');
+end;
+
+procedure CurStepChanged(CurStep: TSetupStep);
+begin
+  if CurStep = ssInstall then
+  begin
+    if FindWindowByClassName('OBSMainWindow') <> 0 then
+    begin
+      MsgBox('OBS Studio is currently running. Please close it before continuing.', mbError, MB_OK);
+      Abort;
+    end;
+  end;
+end;

src/manager-dialog.cpp

@@ -285,9 +285,9 @@ private:
 				&ManagerDialog::onInstallClicked);
 			m_table->setCellWidget(i, 3, btn);
 
+			if (pi->installed) {
 				auto *delBtn = new QPushButton(
 					de ? "Deinstallieren" : "Uninstall");
-			delBtn->setEnabled(pi->installed);
 				delBtn->setProperty("slug", QString(pi->slug));
 				delBtn->setStyleSheet(
 					"QPushButton { color: #cc3333; }");
@@ -296,6 +296,7 @@ private:
 				m_table->setCellWidget(i, 4, delBtn);
 			}
 		}
+	}
 
 	void onInstallClicked()
 	{