v1.22 — Office 2016 MSI ISO telepítés támogatás

Office 2016 Standard és Professional Plus telepítése ISO letöltéssel (soft.direct), ISO csatolással és a Microsoft MSI telepítő indításával. A 2019/2021/2024 verziók továbbra is ODT-vel működnek. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-13 23:27:14 +02:00
commit 12b86e0707
--- a/InstaSoftOfficeTool.csproj
+++ b/InstaSoftOfficeTool.csproj
@@ -9,9 +9,9 @@
    <Company>InstaSoft Zrt.</Company>
    <Product>InstaSoft Office Tool</Product>
    <Copyright>Copyright (c) InstaSoft Zrt. 2026</Copyright>
-    <Version>1.21</Version>
-    <AssemblyVersion>1.21.0.0</AssemblyVersion>
-    <FileVersion>1.21.0.0</FileVersion>
+    <Version>1.22</Version>
+    <AssemblyVersion>1.22.0.0</AssemblyVersion>
+    <FileVersion>1.22.0.0</FileVersion>
    <ApplicationManifest>app.manifest</ApplicationManifest>
    <LangVersion>latest</LangVersion>
  </PropertyGroup>
--- a/MainWindow.xaml
+++ b/MainWindow.xaml
@@ -45,7 +45,7 @@
                                   Foreground="{StaticResource TextSecondaryBrush}" Margin="0,-2,0,0"/>
                    </StackPanel>
                </StackPanel>
-                <TextBlock Text="v1.21" HorizontalAlignment="Right" VerticalAlignment="Center"
+                <TextBlock Text="v1.22" HorizontalAlignment="Right" VerticalAlignment="Center"
                           FontSize="12" Foreground="{StaticResource TextSecondaryBrush}"/>
            </Grid>
        </Border>
--- a/MainWindow.xaml.cs
+++ b/MainWindow.xaml.cs
@@ -174,6 +174,12 @@ namespace InstaSoftOfficeTool
                    _wizardPages[1] = new EditionPage(this, _config);
                }

+                // Refresh config page when edition changes (MSI/ODT mode may differ)
+                if (_currentPageIndex == 2)
+                {
+                    _wizardPages[2] = new ConfigPage(this, _config);
+                }
+
                ShowCurrentPage();
            }
        }
--- a/Models/InstallConfig.cs
+++ b/Models/InstallConfig.cs
@@ -11,6 +11,13 @@ namespace InstaSoftOfficeTool.Models
        public string ProductKey { get; set; }
        public List<string> ExcludedApps { get; set; } = new List<string>();

+        public bool IsMsiInstall => Edition != null && Edition.IsMsiInstall;
+
+        public string GetIsoUrl()
+        {
+            return Edition?.GetIsoUrl(Architecture);
+        }
+
        public string GetVersionDisplayName()
        {
            switch (Version)
@@ -18,6 +25,7 @@ namespace InstaSoftOfficeTool.Models
                case OfficeVersion.Office2024: return "Office 2024";
                case OfficeVersion.Office2021: return "Office 2021";
                case OfficeVersion.Office2019: return "Office 2019";
+                case OfficeVersion.Office2016: return "Office 2016";
                default: return "";
            }
        }
--- a/Models/OfficeEdition.cs
+++ b/Models/OfficeEdition.cs
@@ -8,6 +8,22 @@ namespace InstaSoftOfficeTool.Models
        public string Channel { get; set; }
        public bool IsVolume { get; set; }

+        // MSI ISO telepítés (Office 2016)
+        public string IsoUrl32 { get; set; }
+        public string IsoUrl64 { get; set; }
+
+        public bool IsMsiInstall => IsoUrl64 != null || IsoUrl32 != null;
+
+        public string GetIsoUrl(string architecture)
+        {
+            return architecture == "32" ? IsoUrl32 : IsoUrl64;
+        }
+
+        public bool HasArchitecture(string architecture)
+        {
+            return architecture == "32" ? IsoUrl32 != null : IsoUrl64 != null;
+        }
+
        public static OfficeEdition[] GetEditions(OfficeVersion version)
        {
            switch (version)
@@ -108,7 +124,9 @@ namespace InstaSoftOfficeTool.Models
                            Description = "Alapvető irodai alkalmazások: Word, Excel, PowerPoint, Outlook, OneNote",
                            ProductId = "Standard2016Volume",
                            Channel = "PerpetualVL2019",
-                            IsVolume = true
+                            IsVolume = true,
+                            IsoUrl32 = "https://soft.direct/Install/SW_DVD5_Office_2016_W32_Hungarian_MLF_X20-41370.iso",
+                            IsoUrl64 = "https://soft.direct/Install/SW_DVD5_Office_2016_W64_Hungarian_MLF_X20-41370.iso"
                        },
                        new OfficeEdition
                        {
@@ -116,15 +134,8 @@ namespace InstaSoftOfficeTool.Models
                            Description = "Teljes csomag: Word, Excel, PowerPoint, Outlook, Access, Publisher, OneNote, Skype for Business",
                            ProductId = "ProPlus2016Volume",
                            Channel = "PerpetualVL2019",
-                            IsVolume = true
-                        },
-                        new OfficeEdition
-                        {
-                            DisplayName = "Otthoni és kisvállalati verzió",
-                            Description = "Word, Excel, PowerPoint, Outlook, OneNote — vállalkozásokban is használható",
-                            ProductId = "HomeBusiness2016Retail",
-                            Channel = "Current",
-                            IsVolume = false
+                            IsVolume = true,
+                            IsoUrl64 = "https://soft.direct/Install/SW_DVD5_Office_Professional_Plus_2016_64Bit_Hungarian_MLF_X20-42439.ISO"
                        }
                    };

--- a/Pages/ConfigPage.xaml
+++ b/Pages/ConfigPage.xaml
@@ -32,12 +32,22 @@
                    <TextBlock Text="Telepítési nyelv" FontSize="15" FontWeight="SemiBold" Margin="0,0,0,8"/>
                    <ComboBox x:Name="CbLanguage" Style="{StaticResource FluentComboBox}"
                              HorizontalAlignment="Stretch"/>
+                    <TextBlock x:Name="LanguageNote" Visibility="Collapsed"
+                               FontSize="12" Foreground="{StaticResource TextSecondaryBrush}"
+                               Margin="0,4,0,0" TextWrapping="Wrap"/>
                </StackPanel>
            </Grid>

-            <TextBlock Text="Telepítendő alkalmazások" FontSize="15" FontWeight="SemiBold" Margin="0,0,0,10"/>
+            <TextBlock x:Name="ArchNote" Visibility="Collapsed"
+                       FontSize="12" Foreground="#E65100" Margin="0,-12,0,16" TextWrapping="Wrap"/>
+
+            <TextBlock x:Name="AppTitle" Text="Telepítendő alkalmazások" FontSize="15" FontWeight="SemiBold" Margin="0,0,0,10"/>

            <WrapPanel x:Name="AppCheckBoxes" Orientation="Horizontal"/>
+
+            <TextBlock x:Name="AppNote" Visibility="Collapsed"
+                       FontSize="12" Foreground="{StaticResource TextSecondaryBrush}"
+                       Margin="0,8,0,0" TextWrapping="Wrap"/>
        </StackPanel>
    </ScrollViewer>
 </Page>
--- a/Pages/ConfigPage.xaml.cs
+++ b/Pages/ConfigPage.xaml.cs
@@ -17,12 +17,23 @@ namespace InstaSoftOfficeTool.Pages
            _main = main;
            _config = config;

+            bool isMsi = _config.IsMsiInstall;
+
            // Restore arch
            if (_config.Architecture == "32")
            {
                Rb32.IsChecked = true;
            }

+            // MSI: handle architecture constraints
+            if (isMsi && _config.Edition != null && !_config.Edition.HasArchitecture("32"))
+            {
+                Rb32.IsEnabled = false;
+                Rb64.IsChecked = true;
+                ArchNote.Text = "A Professional Plus kiadáshoz csak 64-bites telepítő érhető el.";
+                ArchNote.Visibility = Visibility.Visible;
+            }
+
            // Populate language combo
            foreach (var lang in LanguageList.Languages)
            {
@@ -45,37 +56,65 @@ namespace InstaSoftOfficeTool.Pages
            }
            if (CbLanguage.SelectedIndex < 0) CbLanguage.SelectedIndex = 0;

-            // Populate app checkboxes
-            foreach (var app in ExcludableApps.Apps)
+            // MSI: language is baked into the ISO
+            if (isMsi)
            {
-                // Ha m\u00e1r van ment\u00e9s a configban, azt haszn\u00e1ljuk; k\u00fcl\u00f6nben a default\u00f6t
-                bool isChecked = _config.ExcludedApps.Count > 0
-                    ? !_config.ExcludedApps.Contains(app.Id)
-                    : app.DefaultChecked;
-
-                bool isProPlus = _config.Edition != null &&
-                    _config.Edition.ProductId.Contains("ProPlus");
-                bool isStandard = _config.Edition != null &&
-                    _config.Edition.ProductId.Contains("Standard");
-
-                bool unavailable = false;
-                if (app.MinEdition == "proplus" && !isProPlus)
-                    unavailable = true;
-                else if (app.MinEdition == "standard+" && !isProPlus && !isStandard)
-                    unavailable = true;
-
-                var cb = new CheckBox
+                CbLanguage.IsEnabled = false;
+                // Force Hungarian selection
+                for (int i = 0; i < CbLanguage.Items.Count; i++)
                {
-                    Content = app.DisplayName,
-                    IsChecked = unavailable ? false : isChecked,
-                    IsEnabled = !unavailable,
-                    Tag = app.Id,
-                    Style = (Style)FindResource("FluentCheckBox"),
-                    Margin = new Thickness(0, 4, 24, 4),
-                    MinWidth = 160
-                };
-                _appCheckBoxes.Add(cb);
-                AppCheckBoxes.Children.Add(cb);
+                    var item = (ComboBoxItem)CbLanguage.Items[i];
+                    if ((string)item.Tag == "hu-hu")
+                    {
+                        CbLanguage.SelectedIndex = i;
+                        break;
+                    }
+                }
+                LanguageNote.Text = "Az Office 2016 telepítő ISO magyar nyelvű. A nyelv nem módosítható.";
+                LanguageNote.Visibility = Visibility.Visible;
+            }
+
+            // MSI: app exclusion not available through our tool
+            if (isMsi)
+            {
+                AppTitle.Visibility = Visibility.Collapsed;
+                AppCheckBoxes.Visibility = Visibility.Collapsed;
+                AppNote.Text = "Az alkalmazások kiválasztása a Microsoft telepítő felületén lehetséges.";
+                AppNote.Visibility = Visibility.Visible;
+            }
+            else
+            {
+                // Populate app checkboxes (ODT mode)
+                foreach (var app in ExcludableApps.Apps)
+                {
+                    bool isChecked = _config.ExcludedApps.Count > 0
+                        ? !_config.ExcludedApps.Contains(app.Id)
+                        : app.DefaultChecked;
+
+                    bool isProPlus = _config.Edition != null &&
+                        _config.Edition.ProductId.Contains("ProPlus");
+                    bool isStandard = _config.Edition != null &&
+                        _config.Edition.ProductId.Contains("Standard");
+
+                    bool unavailable = false;
+                    if (app.MinEdition == "proplus" && !isProPlus)
+                        unavailable = true;
+                    else if (app.MinEdition == "standard+" && !isProPlus && !isStandard)
+                        unavailable = true;
+
+                    var cb = new CheckBox
+                    {
+                        Content = app.DisplayName,
+                        IsChecked = unavailable ? false : isChecked,
+                        IsEnabled = !unavailable,
+                        Tag = app.Id,
+                        Style = (Style)FindResource("FluentCheckBox"),
+                        Margin = new Thickness(0, 4, 24, 4),
+                        MinWidth = 160
+                    };
+                    _appCheckBoxes.Add(cb);
+                    AppCheckBoxes.Children.Add(cb);
+                }
            }
        }

--- a/Pages/ProgressPage.xaml
+++ b/Pages/ProgressPage.xaml
@@ -33,6 +33,9 @@
        <ProgressBar x:Name="MainProgress" Style="{StaticResource FluentProgressBar}"
                     IsIndeterminate="True" Margin="0,0,0,0"/>

+        <TextBlock x:Name="DownloadInfo" FontSize="12" Foreground="{StaticResource TextSecondaryBrush}"
+                   Margin="0,4,0,0" Visibility="Collapsed"/>
+
        <Border Background="#F8F8F8" CornerRadius="6" Padding="12" Margin="0,12,0,0"
                BorderBrush="{StaticResource BorderBrush}" BorderThickness="1">
            <TextBox x:Name="LogText" FontFamily="Consolas" FontSize="11"
--- a/Pages/ProgressPage.xaml.cs
+++ b/Pages/ProgressPage.xaml.cs
@@ -26,56 +26,179 @@ namespace InstaSoftOfficeTool.Pages
        {
            try
            {
-                // Step 1: Download ODT
-                SetStepActive(Step1Icon, Step1Text);
-                AppendLog("ODT let\u00f6lt\u00e9se indul...");
-
-                var downloader = new OdtDownloader();
-                downloader.StatusChanged += msg => Dispatcher.Invoke(() => AppendLog(msg));
-
-                bool downloaded = await downloader.DownloadAndExtractAsync();
-                if (!downloaded)
+                if (_config.IsMsiInstall)
                {
-                    SetStepError(Step1Icon, Step1Text);
-                    ShowDone(false, "Az ODT let\u00f6lt\u00e9se sikertelen.");
-                    return;
-                }
-                SetStepDone(Step1Icon, Step1Text);
-
-                // Step 2: Generate config XML
-                SetStepActive(Step2Icon, Step2Text);
-                AppendLog("Konfigur\u00e1ci\u00f3s XML gener\u00e1l\u00e1sa...");
-
-                string xml = OdtXmlGenerator.Generate(_config);
-                string xmlPath = Path.Combine(downloader.OdtFolder, "configuration.xml");
-                File.WriteAllText(xmlPath, xml);
-                AppendLog("XML mentve: " + xmlPath);
-
-                SetStepDone(Step2Icon, Step2Text);
-
-                // Step 3: Run setup.exe /configure
-                SetStepActive(Step3Icon, Step3Text);
-                AppendLog("Office telep\u00edt\u00e9s ind\u00edt\u00e1sa...");
-                AppendLog("setup.exe /configure \"" + xmlPath + "\"");
-
-                int exitCode = await downloader.RunSetupAsync(xmlPath, msg =>
-                    Dispatcher.Invoke(() => AppendLog(msg)));
-
-                if (exitCode == 0)
-                {
-                    SetStepDone(Step3Icon, Step3Text);
-                    ShowDone(true, "Az Office sikeresen telep\u00fclt!");
+                    await StartMsiInstallation();
                }
                else
                {
-                    SetStepError(Step3Icon, Step3Text);
-                    ShowDone(false, "A telep\u00edt\u00e9s hibak\u00f3ddal fejez\u0151d\u00f6tt be: " + exitCode);
+                    await StartOdtInstallation();
                }
            }
            catch (Exception ex)
            {
                AppendLog("HIBA: " + ex.Message);
-                ShowDone(false, "V\u00e1ratlan hiba t\u00f6rt\u00e9nt.");
+                ShowDone(false, "Váratlan hiba történt.");
+            }
+        }
+
+        private async Task StartOdtInstallation()
+        {
+            // Step 1: Download ODT
+            SetStepActive(Step1Icon, Step1Text);
+            AppendLog("ODT letöltése indul...");
+
+            var downloader = new OdtDownloader();
+            downloader.StatusChanged += msg => Dispatcher.Invoke(() => AppendLog(msg));
+
+            bool downloaded = await downloader.DownloadAndExtractAsync();
+            if (!downloaded)
+            {
+                SetStepError(Step1Icon, Step1Text);
+                ShowDone(false, "Az ODT letöltése sikertelen.");
+                return;
+            }
+            SetStepDone(Step1Icon, Step1Text);
+
+            // Step 2: Generate config XML
+            SetStepActive(Step2Icon, Step2Text);
+            AppendLog("Konfigurációs XML generálása...");
+
+            string xml = OdtXmlGenerator.Generate(_config);
+            string xmlPath = Path.Combine(downloader.OdtFolder, "configuration.xml");
+            File.WriteAllText(xmlPath, xml);
+            AppendLog("XML mentve: " + xmlPath);
+
+            SetStepDone(Step2Icon, Step2Text);
+
+            // Step 3: Run setup.exe /configure
+            SetStepActive(Step3Icon, Step3Text);
+            AppendLog("Office telepítés indítása...");
+            AppendLog("setup.exe /configure \"" + xmlPath + "\"");
+
+            int exitCode = await downloader.RunSetupAsync(xmlPath, msg =>
+                Dispatcher.Invoke(() => AppendLog(msg)));
+
+            if (exitCode == 0)
+            {
+                SetStepDone(Step3Icon, Step3Text);
+                ShowDone(true, "Az Office sikeresen települt!");
+            }
+            else
+            {
+                SetStepError(Step3Icon, Step3Text);
+                ShowDone(false, "A telepítés hibakóddal fejeződött be: " + exitCode);
+            }
+        }
+
+        private async Task StartMsiInstallation()
+        {
+            string isoUrl = _config.GetIsoUrl();
+            if (string.IsNullOrEmpty(isoUrl))
+            {
+                ShowDone(false, "Nincs elérhető ISO a kiválasztott architektúrához.");
+                return;
+            }
+
+            // Update step labels for MSI flow
+            Dispatcher.Invoke(() =>
+            {
+                Step1Text.Text = "Telepítő ISO letöltése...";
+                Step2Text.Text = "ISO csatolása...";
+                Step3Text.Text = "Office 2016 telepítése...";
+            });
+
+            var installer = new MsiInstaller();
+            installer.StatusChanged += msg => Dispatcher.Invoke(() => AppendLog(msg));
+            installer.DownloadProgress += (received, total) =>
+            {
+                Dispatcher.Invoke(() =>
+                {
+                    long receivedMb = received / 1024 / 1024;
+                    if (total > 0)
+                    {
+                        long totalMb = total / 1024 / 1024;
+                        int percent = (int)(received * 100 / total);
+                        DownloadInfo.Text = receivedMb + " MB / " + totalMb + " MB (" + percent + "%)";
+                        MainProgress.IsIndeterminate = false;
+                        MainProgress.Value = percent;
+                    }
+                    else
+                    {
+                        DownloadInfo.Text = receivedMb + " MB letöltve...";
+                    }
+                    DownloadInfo.Visibility = Visibility.Visible;
+                });
+            };
+
+            // Step 1: Download ISO
+            SetStepActive(Step1Icon, Step1Text);
+            AppendLog("ISO letöltése indul...");
+
+            bool downloaded = await installer.DownloadIsoAsync(isoUrl);
+            if (!downloaded)
+            {
+                SetStepError(Step1Icon, Step1Text);
+                ShowDone(false, "Az ISO letöltése sikertelen.");
+                return;
+            }
+            SetStepDone(Step1Icon, Step1Text);
+
+            // Hide download progress, reset progress bar
+            Dispatcher.Invoke(() =>
+            {
+                DownloadInfo.Visibility = Visibility.Collapsed;
+                MainProgress.IsIndeterminate = true;
+            });
+
+            // Step 2: Mount ISO
+            SetStepActive(Step2Icon, Step2Text);
+            bool mounted = await installer.MountIsoAsync();
+            if (!mounted)
+            {
+                SetStepError(Step2Icon, Step2Text);
+                ShowDone(false, "Az ISO csatolása sikertelen.");
+                return;
+            }
+            SetStepDone(Step2Icon, Step2Text);
+
+            // Step 3: Run setup.exe
+            SetStepActive(Step3Icon, Step3Text);
+            int exitCode = await installer.RunSetupAsync(msg =>
+                Dispatcher.Invoke(() => AppendLog(msg)));
+
+            // Dismount ISO regardless of result
+            await installer.DismountIsoAsync();
+
+            if (exitCode == 0)
+            {
+                SetStepDone(Step3Icon, Step3Text);
+
+                // Apply product key if provided
+                if (!string.IsNullOrEmpty(_config.ProductKey))
+                {
+                    AppendLog("Termékkulcs telepítése...");
+                    var lm = new LicenseManager();
+                    if (lm.FindOspp())
+                    {
+                        string inpResult = await lm.InstallKeyAsync(_config.ProductKey);
+                        AppendLog(inpResult);
+                        AppendLog("Aktiválás...");
+                        string actResult = await lm.ActivateAsync();
+                        AppendLog(actResult);
+                    }
+                    else
+                    {
+                        AppendLog("Az ospp.vbs nem található — a kulcsot később a Licenc-kezelésben adhatja meg.");
+                    }
+                }
+
+                ShowDone(true, "Az Office 2016 sikeresen települt!");
+            }
+            else
+            {
+                SetStepError(Step3Icon, Step3Text);
+                ShowDone(false, "A telepítés hibakóddal fejeződött be: " + exitCode);
            }
        }

--- a/Pages/SummaryPage.xaml.cs
+++ b/Pages/SummaryPage.xaml.cs
@@ -30,13 +30,30 @@ namespace InstaSoftOfficeTool.Pages
            SumLanguage.Text = _config.GetLanguageDisplayName() + " (" + _config.Language + ")";
            SumKey.Text = string.IsNullOrEmpty(_config.ProductKey) ? "Nincs megadva" : _config.ProductKey;

-            if (_config.ExcludedApps.Count > 0)
-                SumExcluded.Text = string.Join(", ", _config.ExcludedApps);
-            else
-                SumExcluded.Text = "Nincs (minden alkalmaz\u00e1s telep\u00fcl)";
+            if (_config.IsMsiInstall)
+            {
+                // MSI mode: no app exclusion, show ISO info instead of XML
+                SumExcluded.Text = "(a Microsoft telepítőben választható)";

-            _generatedXml = OdtXmlGenerator.Generate(_config);
-            XmlPreview.Text = _generatedXml;
+                string isoUrl = _config.GetIsoUrl();
+                XmlPreview.Text = "Telepítési mód: ISO letöltés + MSI telepítő\n" +
+                    "ISO URL: " + (isoUrl ?? "Nem elérhető") + "\n\n" +
+                    "A telepítő ISO fájl letöltése után a Microsoft Office\n" +
+                    "saját telepítője indul el automatikusan.";
+
+                BtnSaveXml.Visibility = System.Windows.Visibility.Collapsed;
+            }
+            else
+            {
+                if (_config.ExcludedApps.Count > 0)
+                    SumExcluded.Text = string.Join(", ", _config.ExcludedApps);
+                else
+                    SumExcluded.Text = "Nincs (minden alkalmazás települ)";
+
+                _generatedXml = OdtXmlGenerator.Generate(_config);
+                XmlPreview.Text = _generatedXml;
+                BtnSaveXml.Visibility = System.Windows.Visibility.Visible;
+            }
        }

        private void BtnSaveXml_Click(object sender, RoutedEventArgs e)
--- a/Pages/VersionPage.xaml
+++ b/Pages/VersionPage.xaml
@@ -15,7 +15,7 @@
                       Foreground="{StaticResource TextSecondaryBrush}" Margin="0,4,0,0"/>
        </StackPanel>

-        <ScrollViewer Grid.Row="1" VerticalScrollBarVisibility="Auto" HorizontalScrollBarVisibility="Disabled">
+        <ScrollViewer Grid.Row="1" VerticalScrollBarVisibility="Auto" HorizontalScrollBarVisibility="Disabled" Padding="0,0,4,0">
        <StackPanel VerticalAlignment="Top">
            <RadioButton x:Name="Rb2024" Style="{StaticResource CardRadioButton}"
                         GroupName="Version" IsChecked="True" Margin="0,0,0,10">
--- a/Services/MsiInstaller.cs
+++ b/Services/MsiInstaller.cs
@@ -0,0 +1,192 @@
+using System;
+using System.Diagnostics;
+using System.IO;
+using System.Net.Http;
+using System.Threading.Tasks;
+
+namespace InstaSoftOfficeTool.Services
+{
+    public class MsiInstaller
+    {
+        public event Action<string> StatusChanged;
+        public event Action<long, long> DownloadProgress;
+
+        private string _isoPath;
+        private string _mountedDrive;
+
+        public string WorkFolder { get; private set; }
+
+        public MsiInstaller()
+        {
+            WorkFolder = Path.Combine(Path.GetTempPath(), "InstaSoftODT");
+            Directory.CreateDirectory(WorkFolder);
+        }
+
+        public async Task<bool> DownloadIsoAsync(string url)
+        {
+            try
+            {
+                string fileName = Path.GetFileName(new Uri(url).AbsolutePath);
+                _isoPath = Path.Combine(WorkFolder, fileName);
+
+                // Check if already downloaded
+                if (File.Exists(_isoPath))
+                {
+                    var fi = new FileInfo(_isoPath);
+                    if (fi.Length > 100_000_000)
+                    {
+                        StatusChanged?.Invoke("ISO már letöltve: " + fileName + " (" + (fi.Length / 1024 / 1024) + " MB)");
+                        return true;
+                    }
+                    File.Delete(_isoPath);
+                }
+
+                StatusChanged?.Invoke("ISO letöltése: " + fileName);
+                StatusChanged?.Invoke("URL: " + url);
+
+                using (var handler = new HttpClientHandler { AllowAutoRedirect = true })
+                using (var client = new HttpClient(handler))
+                {
+                    client.DefaultRequestHeaders.Add("User-Agent", "InstaSoftOfficeTool/1.0");
+                    client.Timeout = TimeSpan.FromMinutes(30);
+
+                    var response = await client.GetAsync(url, HttpCompletionOption.ResponseHeadersRead);
+                    response.EnsureSuccessStatusCode();
+
+                    long totalBytes = response.Content.Headers.ContentLength ?? -1;
+
+                    using (var stream = await response.Content.ReadAsStreamAsync())
+                    using (var fileStream = new FileStream(_isoPath, FileMode.Create, FileAccess.Write, FileShare.None, 65536))
+                    {
+                        var buffer = new byte[65536];
+                        long totalRead = 0;
+                        int bytesRead;
+
+                        while ((bytesRead = await stream.ReadAsync(buffer, 0, buffer.Length)) > 0)
+                        {
+                            await fileStream.WriteAsync(buffer, 0, bytesRead);
+                            totalRead += bytesRead;
+                            DownloadProgress?.Invoke(totalRead, totalBytes);
+                        }
+                    }
+
+                    var downloadedSize = new FileInfo(_isoPath).Length;
+                    StatusChanged?.Invoke("ISO letöltve: " + (downloadedSize / 1024 / 1024) + " MB");
+                }
+
+                return true;
+            }
+            catch (HttpRequestException ex)
+            {
+                StatusChanged?.Invoke("Hálózati hiba: " + ex.Message);
+                return false;
+            }
+            catch (TaskCanceledException)
+            {
+                StatusChanged?.Invoke("Időtúllépés: A letöltés túl sokáig tartott.");
+                return false;
+            }
+            catch (Exception ex)
+            {
+                StatusChanged?.Invoke("ISO letöltési hiba: " + ex.Message);
+                return false;
+            }
+        }
+
+        public async Task<bool> MountIsoAsync()
+        {
+            try
+            {
+                StatusChanged?.Invoke("ISO csatolása...");
+
+                var psi = new ProcessStartInfo
+                {
+                    FileName = "powershell",
+                    Arguments = "-NoProfile -Command \"" +
+                        "$result = Mount-DiskImage -ImagePath '" + _isoPath + "' -PassThru; " +
+                        "$vol = $result | Get-Volume; " +
+                        "Write-Output $vol.DriveLetter\"",
+                    UseShellExecute = false,
+                    CreateNoWindow = true,
+                    RedirectStandardOutput = true,
+                    RedirectStandardError = true
+                };
+
+                using (var process = Process.Start(psi))
+                {
+                    string output = await Task.Run(() => process.StandardOutput.ReadToEnd());
+                    await Task.Run(() => process.WaitForExit());
+
+                    string driveLetter = output.Trim();
+                    if (process.ExitCode != 0 || driveLetter.Length != 1 || !char.IsLetter(driveLetter[0]))
+                    {
+                        string error = await Task.Run(() => process.StandardError.ReadToEnd());
+                        StatusChanged?.Invoke("Hiba: Az ISO csatolása sikertelen.");
+                        if (!string.IsNullOrEmpty(error))
+                            StatusChanged?.Invoke(error.Trim());
+                        return false;
+                    }
+
+                    _mountedDrive = driveLetter + ":\\";
+                    StatusChanged?.Invoke("ISO csatolva: " + _mountedDrive);
+                    return true;
+                }
+            }
+            catch (Exception ex)
+            {
+                StatusChanged?.Invoke("ISO csatolási hiba: " + ex.Message);
+                return false;
+            }
+        }
+
+        public async Task<int> RunSetupAsync(Action<string> outputCallback)
+        {
+            string setupExe = Path.Combine(_mountedDrive, "setup.exe");
+            if (!File.Exists(setupExe))
+            {
+                StatusChanged?.Invoke("Hiba: setup.exe nem található: " + setupExe);
+                return -1;
+            }
+
+            StatusChanged?.Invoke("Office 2016 telepítő indítása: " + setupExe);
+            outputCallback?.Invoke("A Microsoft Office telepítő ablaka megjelenik...");
+            outputCallback?.Invoke("Kérjük, kövesse a telepítő utasításait.");
+
+            var psi = new ProcessStartInfo
+            {
+                FileName = setupExe,
+                UseShellExecute = true
+            };
+
+            using (var process = Process.Start(psi))
+            {
+                await Task.Run(() => process.WaitForExit());
+                return process.ExitCode;
+            }
+        }
+
+        public async Task DismountIsoAsync()
+        {
+            try
+            {
+                if (string.IsNullOrEmpty(_isoPath) || !File.Exists(_isoPath)) return;
+
+                StatusChanged?.Invoke("ISO leválasztása...");
+                var psi = new ProcessStartInfo
+                {
+                    FileName = "powershell",
+                    Arguments = "-NoProfile -Command \"Dismount-DiskImage -ImagePath '" + _isoPath + "'\"",
+                    UseShellExecute = false,
+                    CreateNoWindow = true
+                };
+
+                using (var process = Process.Start(psi))
+                {
+                    await Task.Run(() => process.WaitForExit());
+                }
+                StatusChanged?.Invoke("ISO leválasztva.");
+            }
+            catch { }
+        }
+    }
+}