diff --git a/Mlaumcherb.Client.Avalonia/классы/Пролетариат/MyModpack.cs b/Mlaumcherb.Client.Avalonia/классы/Пролетариат/MyModpack.cs
index bf0084f..ac2d0da 100644
--- a/Mlaumcherb.Client.Avalonia/классы/Пролетариат/MyModpack.cs
+++ b/Mlaumcherb.Client.Avalonia/классы/Пролетариат/MyModpack.cs
@@ -29,21 +29,25 @@ public class MyModpackV1
         public bool optional { get; set; }
     }
 
-    public bool CheckFiles(IOPath basedir, bool checkHashes, bool downloadOptionalFiles, HashSet<IOPath> unmatchedFilesLocalPaths)
+    /// <param name="unmatchedFilesLocalPaths">relative, absolute</param>
+    public Dictionary<IOPath, IOPath> CheckFiles(IOPath basedir, bool checkHashes, bool downloadOptionalFiles)
     {
+        Dictionary<IOPath, IOPath> unmatchedFiles = new();
+        IOPath launcherRoot = PathHelper.GetRootFullPath();
         foreach (var p in files)
         {
             if(!downloadOptionalFiles && p.Value.optional)
                 continue;
             
-            var localPath = new IOPath(p.Key);
-            var realPath = Path.Concat(basedir, localPath);
-            if (!HashHelper.CheckFileSHA1(realPath, p.Value.sha1, checkHashes && !p.Value.allow_edit))
+            IOPath relativePath = new IOPath(p.Key);
+            var absolutePath = Path.Concat(relativePath.StartsWith("libraries") 
+                ? launcherRoot : basedir, relativePath);
+            if (!HashHelper.CheckFileSHA1(absolutePath, p.Value.sha1, checkHashes && !p.Value.allow_edit))
             {
-                unmatchedFilesLocalPaths.Add(localPath);
+                unmatchedFiles.Add(relativePath, absolutePath);
             }
         }
-        
-        return unmatchedFilesLocalPaths.Count == 0;
+
+        return unmatchedFiles;
     }
 }
\ No newline at end of file
diff --git a/Mlaumcherb.Client.Avalonia/сеть/TaskFactories/ModpackDownloadTaskFactory.cs b/Mlaumcherb.Client.Avalonia/сеть/TaskFactories/ModpackDownloadTaskFactory.cs
index f60dbc6..1444c1a 100644
--- a/Mlaumcherb.Client.Avalonia/сеть/TaskFactories/ModpackDownloadTaskFactory.cs
+++ b/Mlaumcherb.Client.Avalonia/сеть/TaskFactories/ModpackDownloadTaskFactory.cs
@@ -1,7 +1,4 @@
-using System.IO.Compression;
-using Mlaumcherb.Client.Avalonia.зримое;
-using Mlaumcherb.Client.Avalonia.классы;
-using Mlaumcherb.Client.Avalonia.холопы;
+using Mlaumcherb.Client.Avalonia.классы;
 
 namespace Mlaumcherb.Client.Avalonia.сеть.TaskFactories;
 
@@ -25,89 +22,6 @@ public class ModpackDownloadTaskFactory : INetworkTaskFactory
 
     public Task<NetworkTask?> CreateAsync(bool checkHashes)
     {
-        // Modpacks can include libraries.
-        // This libraries are downloaded in launcher_dir/libraries through symbolic link.
-        var localLibsDir = Path.Concat(PathHelper.GetVersionDir(_descriptor.id), "libraries");
-        var globalLibsDir = PathHelper.GetLibrariesDir();
-        var dirInfo = new DirectoryInfo(localLibsDir.ToString());
-        // delete dir if it isn't symlink
-        if(dirInfo.Exists && dirInfo.LinkTarget is null)
-            dirInfo.Delete(true);
-        if (!dirInfo.Exists)
-        {
-            LauncherApp.Logger.LogInfo(nameof(ModpackDownloadTaskFactory),
-                $"Creating symbolic link '{localLibsDir}' -> '{globalLibsDir}'");
-            dirInfo.CreateAsSymbolicLink(globalLibsDir.ToString());
-        }
-        
         return _implementationVersion.CreateAsync(checkHashes);
     }
-}
-
-public class MyModpackV1DownloadTaskFactory : INetworkTaskFactory
-{
-    private readonly GameVersionDescriptor _descriptor;
-    private IOPath _modpackDescriptorPath;
-    private IOPath _versionDir;
-    private MyModpackV1? _modpack;
-    private HashSet<IOPath> _filesToDosnload = new();
-
-    public MyModpackV1DownloadTaskFactory(GameVersionDescriptor descriptor)
-    {
-        _descriptor = descriptor;
-        _modpackDescriptorPath = PathHelper.GetModpackDescriptorPath(_descriptor.id);
-        _versionDir = PathHelper.GetVersionDir(_descriptor.id);
-    }
-    
-    public async Task<NetworkTask?> CreateAsync(bool checkHashes)
-    {
-        if(_descriptor.modpack is null)
-            throw new ArgumentNullException(nameof(_descriptor.modpack));
-        
-        (_modpack, bool didDownloadModpackDescriptor) = await NetworkHelper.ReadOrDownloadAndDeserialize<MyModpackV1>(
-            _modpackDescriptorPath,
-            _descriptor.modpack.artifact.url, 
-            _descriptor.modpack.artifact.sha1,
-            checkHashes);
-        if (_modpack.format_version != _descriptor.modpack.format_version)
-            throw new Exception($"Modpack.format_version mismatches descriptor.modpack.version: " +
-                                $"{_modpack.format_version} != {_descriptor.modpack.format_version}");
-        
-        NetworkTask? networkTask = null;
-        if(!_modpack.CheckFiles(_versionDir, checkHashes, didDownloadModpackDescriptor, _filesToDosnload))
-        {
-            networkTask = new NetworkTask(
-                $"modpack '{_descriptor.assetIndex.id}'",
-                _modpack.zip.size,
-                Download
-            );
-        }
-
-        return networkTask;
-    }
-
-    private async Task Download(NetworkProgressReporter pr, CancellationToken ct)
-    {
-        LauncherApp.Logger.LogInfo(nameof(NetworkHelper), $"started downloading modpack '{_modpack!.name}'");
-        if(string.IsNullOrEmpty(_modpack.zip.url))
-            throw new Exception($"modpack '{_modpack.name}' doesn't have a url to download");
-
-        var _archivePath = Path.Concat(PathHelper.GetCacheDir(), "modpacks", _modpack.name + ".zip");
-        await NetworkHelper.DownloadFile(_modpack.zip.url, _archivePath, ct, pr.AddBytesCount);
-        
-        await using var zipf = File.OpenRead(_archivePath);
-        using var archive = new ZipArchive(zipf);
-        foreach (var entry in archive.Entries)
-        {
-            IOPath localPath = new(entry.FullName);
-            if(_filesToDosnload.Contains(localPath))
-            {
-                var real_path = Path.Concat(_versionDir, localPath);
-                Directory.Create(real_path.ParentDir());
-                entry.ExtractToFile(real_path.ToString(), true);
-            }
-        }
-        
-        LauncherApp.Logger.LogInfo(nameof(NetworkHelper), $"finished downloading modpack '{_modpack.name}'");
-    }
 }
\ No newline at end of file
diff --git a/Mlaumcherb.Client.Avalonia/сеть/TaskFactories/MyModpackV1DownloadTaskFactory.cs b/Mlaumcherb.Client.Avalonia/сеть/TaskFactories/MyModpackV1DownloadTaskFactory.cs
new file mode 100644
index 0000000..7dc7999
--- /dev/null
+++ b/Mlaumcherb.Client.Avalonia/сеть/TaskFactories/MyModpackV1DownloadTaskFactory.cs
@@ -0,0 +1,75 @@
+using System.IO.Compression;
+using Mlaumcherb.Client.Avalonia.зримое;
+using Mlaumcherb.Client.Avalonia.классы;
+using Mlaumcherb.Client.Avalonia.холопы;
+
+namespace Mlaumcherb.Client.Avalonia.сеть.TaskFactories;
+
+public class MyModpackV1DownloadTaskFactory : INetworkTaskFactory
+{
+    private readonly GameVersionDescriptor _descriptor;
+    private IOPath _modpackDescriptorPath;
+    private IOPath _versionDir;
+    private MyModpackV1? _modpack;
+    // relative, absolute
+    private Dictionary<IOPath, IOPath> _filesToDosnload = new();
+
+    public MyModpackV1DownloadTaskFactory(GameVersionDescriptor descriptor)
+    {
+        _descriptor = descriptor;
+        _modpackDescriptorPath = PathHelper.GetModpackDescriptorPath(_descriptor.id);
+        _versionDir = PathHelper.GetVersionDir(_descriptor.id);
+    }
+    
+    public async Task<NetworkTask?> CreateAsync(bool checkHashes)
+    {
+        if(_descriptor.modpack is null)
+            throw new ArgumentNullException(nameof(_descriptor.modpack));
+        
+        (_modpack, bool didDownloadModpackDescriptor) = await NetworkHelper.ReadOrDownloadAndDeserialize<MyModpackV1>(
+            _modpackDescriptorPath,
+            _descriptor.modpack.artifact.url, 
+            _descriptor.modpack.artifact.sha1,
+            checkHashes);
+        if (_modpack.format_version != _descriptor.modpack.format_version)
+            throw new Exception($"Modpack.format_version mismatches descriptor.modpack.version: " +
+                                $"{_modpack.format_version} != {_descriptor.modpack.format_version}");
+        
+        NetworkTask? networkTask = null;
+        _filesToDosnload = _modpack.CheckFiles(_versionDir, checkHashes, didDownloadModpackDescriptor);
+        if(_filesToDosnload.Count > 0)
+        {
+            networkTask = new NetworkTask(
+                $"modpack '{_modpack.name}'",
+                _modpack.zip.size,
+                Download
+            );
+        }
+
+        return networkTask;
+    }
+
+    private async Task Download(NetworkProgressReporter pr, CancellationToken ct)
+    {
+        LauncherApp.Logger.LogInfo(nameof(NetworkHelper), $"started downloading modpack '{_modpack!.name}'");
+        if(string.IsNullOrEmpty(_modpack.zip.url))
+            throw new Exception($"modpack '{_modpack.name}' doesn't have a url to download");
+
+        var _archivePath = Path.Concat(PathHelper.GetCacheDir(), "modpacks", _modpack.name + ".zip");
+        await NetworkHelper.DownloadFile(_modpack.zip.url, _archivePath, ct, pr.AddBytesCount);
+        
+        await using var zipf = File.OpenRead(_archivePath);
+        using var archive = new ZipArchive(zipf);
+        foreach (var entry in archive.Entries)
+        {
+            IOPath relativePath = new(entry.FullName);
+            if(_filesToDosnload.TryGetValue(relativePath, out var absolutePath))
+            {
+                Directory.Create(absolutePath.ParentDir());
+                entry.ExtractToFile(absolutePath.ToString(), true);
+            }
+        }
+        
+        LauncherApp.Logger.LogInfo(nameof(NetworkHelper), $"finished downloading modpack '{_modpack.name}'");
+    }
+}
\ No newline at end of file