x86和x64

CheckDownload.csproj

@@ -184,7 +184,8 @@
     </BootstrapperPackage>
   </ItemGroup>
   <ItemGroup>
-    <EmbeddedResource Include="7z.dll" />
+    <EmbeddedResource Include="7z-x86.dll" />
+    <EmbeddedResource Include="7z-x64.dll" />
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">

Form1.cs

@@ -270,7 +270,7 @@ namespace CheckDownload
 
                 if (_completedCount == 0 && orderedFileList.Count > 0)
                 {
-                     throw new Exception("所有文件下载失败。");
+                    throw new Exception("所有文件下载失败。");
                 }
 
                 await VerifyAndSaveAllFiles();
@@ -445,7 +445,7 @@ namespace CheckDownload
 
             if (_completedCount == 0 && fileList.Count > 0)
             {
-                 throw new Exception("所有文件下载失败。");
+                throw new Exception("所有文件下载失败。");
             }
 
             await VerifyAndSaveAllFiles();
@@ -1495,8 +1495,14 @@ namespace CheckDownload
                     await Task.Run(() => {
                         try
                         {
+                            string sevenZipDllPath = Extract7zDll();
+                            if (string.IsNullOrEmpty(sevenZipDllPath))
+                            {
+                                throw new Exception("无法提取7z.dll，解压中止。");
+                            }
+
                             string extractionPath = Path.GetDirectoryName(sevenZipFile);
-                            using (var archiveFile = new ArchiveFile(sevenZipFile))
+                            using (var archiveFile = new ArchiveFile(sevenZipFile, sevenZipDllPath))
                             {
                                 archiveFile.Extract(extractionPath, true);
                             }
@@ -1514,8 +1520,49 @@ namespace CheckDownload
             catch (Exception ex)
             {
                 UpdateStatus($"处理 tim.7z 时出错: {ex.Message}");
+                MessageBox.Show($"处理 tim.7z 时出错: {ex.Message}");
                 await Task.Delay(3000);
             }
         }
+
+        /// <summary>
+        /// 从嵌入的资源中提取与当前进程体系结构匹配的7z.dll到临时目录。
+        /// </summary>
+        /// <returns>提取的7z.dll的路径，如果失败则返回null。</returns>
+        private string Extract7zDll()
+        {
+            try
+            {
+                string dllName = Environment.Is64BitProcess ? "7z-x64.dll" : "7z-x86.dll";
+                string resourceName = $"CheckDownload.{dllName}";
+                string dllPath = Path.Combine(_tempDirectory, "7z.dll");
+
+                if (File.Exists(dllPath))
+                {
+                    // 可以选择在这里添加对现有DLL版本的校验，但为简化，我们先直接返回
+                    return dllPath;
+                }
+
+                using (var resourceStream = Assembly.GetExecutingAssembly().GetManifestResourceStream(resourceName))
+                {
+                    if (resourceStream == null)
+                    {
+                        UpdateStatus($"在嵌入资源中未找到 {dllName}。");
+                        return null;
+                    }
+
+                    using (var fileStream = new FileStream(dllPath, FileMode.Create, FileAccess.Write))
+                    {
+                        resourceStream.CopyTo(fileStream);
+                    }
+                }
+                return dllPath;
+            }
+            catch (Exception ex)
+            {
+                UpdateStatus($"提取7z.dll失败: {ex.Message}");
+                return null;
+            }
+        }
     }
 }