diff --git a/fix_pyminiracer_dll.py b/fix_pyminiracer_dll.py
new file mode 100644
index 0000000..286d09f
--- /dev/null
+++ b/fix_pyminiracer_dll.py
@@ -0,0 +1,136 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+"""
+PyMiniRacer DLL Auto-Fix Script
+Automatically copy PyMiniRacer native DLL files after build
+"""
+
+import os
+import shutil
+import sys
+from pathlib import Path
+
+def find_mini_racer_dll():
+    """Find PyMiniRacer DLL files"""
+    print("Searching for PyMiniRacer DLL files...")
+    
+    try:
+        import py_mini_racer
+        pkg_path = Path(py_mini_racer.__file__).parent
+        
+        # Find DLL files
+        dll_files = list(pkg_path.glob("*.dll")) + list(pkg_path.glob("*.pyd"))
+        
+        if dll_files:
+            print(f"OK: Found PyMiniRacer native library files:")
+            for dll in dll_files:
+                print(f"   - {dll.name} ({dll.stat().st_size / 1024:.1f} KB)")
+            return dll_files
+        else:
+            print("WARN: No DLL files found")
+            # Try subdirectories
+            for subdir in pkg_path.iterdir():
+                if subdir.is_dir():
+                    dll_files = list(subdir.glob("*.dll")) + list(subdir.glob("*.pyd"))
+                    if dll_files:
+                        print(f"OK: Found in subdirectory {subdir.name}:")
+                        for dll in dll_files:
+                            print(f"   - {dll.name}")
+                        return dll_files
+            
+            return []
+            
+    except ImportError:
+        print("ERROR: PyMiniRacer is not installed")
+        return []
+    except Exception as e:
+        print(f"ERROR: Failed to find DLL: {e}")
+        return []
+
+def copy_dll_to_dist():
+    """Copy DLL files to dist directory"""
+    print("\n" + "=" * 70)
+    print("PyMiniRacer DLL Auto-Fix Tool")
+    print("=" * 70)
+    
+    # Find dist directory
+    dist_dir = Path("dist/MultiPlatformGUI/_internal")
+    
+    if not dist_dir.exists():
+        print(f"ERROR: dist directory not found: {dist_dir}")
+        print("       Please run: python quick_build.py or python build_production.py")
+        return False
+    
+    print(f"OK: Found dist directory: {dist_dir}")
+    
+    # Find source DLL
+    dll_files = find_mini_racer_dll()
+    
+    if not dll_files:
+        print("\nERROR: Cannot find PyMiniRacer DLL files")
+        print("       Please ensure it is installed: pip install py-mini-racer")
+        return False
+    
+    # Copy DLL files
+    print(f"\nCopying DLL files to dist directory...")
+    
+    success_count = 0
+    for dll_file in dll_files:
+        try:
+            # Target path (put in _internal root directory)
+            target = dist_dir / dll_file.name
+            
+            # Copy file
+            shutil.copy2(dll_file, target)
+            print(f"OK: Copied {dll_file.name} -> {target}")
+            success_count += 1
+            
+            # Also copy to py_mini_racer subdirectory (if exists)
+            py_mini_racer_dir = dist_dir / "py_mini_racer"
+            if py_mini_racer_dir.exists():
+                target2 = py_mini_racer_dir / dll_file.name
+                shutil.copy2(dll_file, target2)
+                print(f"OK: Copied {dll_file.name} -> {target2}")
+            
+        except Exception as e:
+            print(f"ERROR: Failed to copy {dll_file.name}: {e}")
+    
+    if success_count > 0:
+        print(f"\nSUCCESS: Copied {success_count} file(s)")
+        print("\nVerification:")
+        print(f"   Checking if file exists: {dist_dir / 'mini_racer.dll'}")
+        
+        if (dist_dir / 'mini_racer.dll').exists():
+            size = (dist_dir / 'mini_racer.dll').stat().st_size / (1024 * 1024)
+            print(f"   OK: mini_racer.dll exists ({size:.1f} MB)")
+        
+        print("\nYou can now run:")
+        print("   cd dist\\MultiPlatformGUI")
+        print("   .\\main.exe")
+        print("\n   PDD platform should work properly now!")
+        return True
+    else:
+        print("\nERROR: No files were copied successfully")
+        return False
+
+def auto_fix_after_build():
+    """Auto-fix after build (called by build script)"""
+    return copy_dll_to_dist()
+
+def main():
+    """Main function"""
+    success = copy_dll_to_dist()
+    
+    if not success:
+        print("\nAlternative solutions:")
+        print("   1. Manually install Node.js (to enable execjs)")
+        print("   2. Check if PyMiniRacer is installed correctly")
+        print("   3. Try a different version of py-mini-racer")
+        sys.exit(1)
+    
+    print("\nDLL fix completed successfully!")
+
+if __name__ == "__main__":
+    main()
+
+