diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..e2e5d02
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,5 @@
+__pycache__/
+*.pyc
+*.bak
+bandizip_license.txt
+.DS_Store
diff --git a/bandizip_keygen.py b/bandizip_keygen.py
new file mode 100644
index 0000000..eccda9d
--- /dev/null
+++ b/bandizip_keygen.py
@@ -0,0 +1,194 @@
+#!/usr/bin/env python3
+"""
+Bandizip Professional Keygen
+=============================
+生成 Bandizip Professional 注册码。
+
+注意：需要配合 patch 后的 Bandizip.exe 使用。
+Patch 内容：
+  - sub_1400D18F0 (在线验证) -> return 1
+  - sub_1400CF980 (写注册表) -> return 1  
+  - sub_1400CF470 (读 Edition) -> return 1
+  - 4x NOP (注册码格式检查)
+  - 版本号默认值 0x98 -> 0x3D4 (Standard -> Professional)
+
+使用方法：
+  python bandizip_keygen.py
+  python bandizip_keygen.py user@example.com
+"""
+
+import random
+import string
+import hashlib
+import time
+import sys
+import os
+
+
+# ============ 注册码格式 ============
+# Bandizip 注册码格式: XXXXXXXX-XXXXXXXX-XXXXXXXX-XXXXXXXX
+# 每段 8 个十六进制字符，共 4 段
+# 原始验证流程已被 patch，任意格式均可通过
+
+def generate_product_key(seed=None):
+    """
+    生成 Bandizip 产品密钥
+    格式: XXXXXXXX-XXXXXXXX-XXXXXXXX-XXXXXXXX
+    """
+    if seed:
+        # 使用种子生成确定性密钥
+        rng = random.Random(seed)
+    else:
+        rng = random.Random()
+    
+    segments = []
+    for _ in range(4):
+        seg = ''.join(rng.choices('0123456789ABCDEF', k=8))
+        segments.append(seg)
+    
+    return '-'.join(segments)
+
+
+def generate_license_data(email):
+    """
+    生成完整的许可证数据
+    """
+    # 基于 email 生成种子
+    seed = int(hashlib.md5(email.encode()).hexdigest()[:8], 16)
+    
+    # 生成产品密钥
+    product_key = generate_product_key(seed)
+    
+    # 生成 GUID（模拟服务器返回的）
+    guid = '%08X-%04X-%04X-%04X-%012X' % (
+        seed & 0xFFFFFFFF,
+        (seed >> 8) & 0xFFFF,
+        (seed >> 16) & 0xFFFF,
+        (seed >> 24) & 0xFFFF,
+        seed & 0xFFFFFFFFFFFF
+    )
+    
+    # 生成硬件 ID（模拟）
+    hid = '%08X' % (seed ^ 0xDEADBEEF)
+    
+    # 产品 ID (1000 = Professional)
+    product_id = 1000
+    
+    return {
+        'email': email,
+        'productKey': product_key,
+        'guid': guid,
+        'hid': hid,
+        'productID': product_id,
+        'edition': 'PRO',
+        'timestamp': seed % 0x7FFFFFFF,  # 稳定值，基于 email 种子
+    }
+
+
+def format_license(data):
+    """
+    格式化许可证信息
+    """
+    lines = [
+        '==================================================',
+        '         Bandizip Professional License            ',
+        '==================================================',
+        f'  Email:       {data["email"]}',
+        f'  Product Key: {data["productKey"]}',
+        f'  Edition:     {data["edition"]}',
+        f'  Product ID:  {data["productID"]}',
+        f'  GUID:        {data["guid"]}',
+        f'  HID:         {data["hid"]}',
+        '==================================================',
+    ]
+    return '\n'.join(lines)
+
+
+def write_registry(data):
+    """
+    写入 Windows 注册表（需要管理员权限）
+    """
+    try:
+        import winreg
+    except ImportError:
+        print('  [!] 非 Windows 系统，跳过注册表写入')
+        return False
+    
+    key_path = r'SOFTWARE\Bandizip'
+    
+    try:
+        # 写入 Edition
+        with winreg.CreateKeyEx(winreg.HKEY_LOCAL_MACHINE, key_path, 0, winreg.KEY_SET_VALUE) as key:
+            winreg.SetValueEx(key, 'Edition', 0, winreg.REG_SZ, data['edition'])
+        
+        print(f'  [OK] Edition = {data["edition"]}')
+        return True
+    except PermissionError:
+        print('  [!] 需要管理员权限写入注册表')
+        print(f'  请手动执行:')
+        print(f'    reg add "HKLM\\{key_path}" /v Edition /t REG_SZ /d "{data["edition"]}" /f')
+        return False
+    except Exception as e:
+        print(f'  [!] 注册表写入失败: {e}')
+        return False
+
+
+def main():
+    print('==================================================')
+    print('     Bandizip Professional Keygen v1.0           ')
+    print('==================================================')
+    print()
+    
+    # 获取 email
+    if len(sys.argv) > 1:
+        email = sys.argv[1]
+    else:
+        email = input('请输入邮箱地址: ').strip()
+        if not email:
+            email = 'user@bandizip.local'
+    
+    print(f'\n[Email] {email}')
+    print(f'[Keygen] 生成注册码...\n')
+    
+    # 生成许可证数据
+    data = generate_license_data(email)
+    
+    # 显示许可证
+    print(format_license(data))
+    print()
+    
+    # 询问是否写入注册表
+    if sys.platform == 'win32':
+        print('是否写入注册表? (y/n): ', end='')
+        try:
+            choice = input().strip().lower()
+            if choice == 'y':
+                write_registry(data)
+        except EOFError:
+            pass
+    
+    print(f'\n[Steps] Registration:')
+    print(f'  1. Open Bandizip')
+    print(f'  2. Menu -> Help -> Register')
+    print(f'  3. Email: {data["email"]}')
+    print(f'  4. Product Key: {data["productKey"]}')
+    print(f'  5. Click Register')
+    print()
+    
+    # 保存到文件
+    license_file = os.path.join(os.path.dirname(__file__), 'bandizip_license.txt')
+    with open(license_file, 'w', encoding='utf-8') as f:
+        f.write(format_license(data) + '\n')
+        f.write(f'\nEmail: {data["email"]}\n')
+        f.write(f'Product Key: {data["productKey"]}\n')
+        f.write(f'Edition: {data["edition"]}\n')
+        f.write(f'Product ID: {data["productID"]}\n')
+        f.write(f'GUID: {data["guid"]}\n')
+        f.write(f'HID: {data["hid"]}\n')
+        f.write(f'Timestamp: {data["timestamp"]}\n')
+    
+    print(f'  [Save] 许可证已保存到: {license_file}')
+
+
+if __name__ == '__main__':
+    main()
diff --git a/bandizip_patcher.py b/bandizip_patcher.py
new file mode 100644
index 0000000..c3441ea
--- /dev/null
+++ b/bandizip_patcher.py
@@ -0,0 +1,328 @@
+#!/usr/bin/env python3
+"""
+Bandizip Professional Patcher
+=============================
+一键补丁器：备份、patch、验证、恢复。
+
+Patch 内容（共 8 处，35 字节）：
+  1. sub_1400D18F0 @ 0xD0CF0 -> B0 01 C3 (mov al,1; ret)  在线验证跳过
+  2. sub_1400CF980 @ 0xCED80 -> B0 01 C3 (mov al,1; ret)  写注册表跳过
+  3. sub_1400CF470 @ 0xCE870 -> B0 01 C3 (mov al,1; ret)  Edition 检查返回 true
+  4. sub_140133648 @ 0x132A48 -> 90*6 (NOP)  注册码长度检查跳过
+  5. sub_140133655 @ 0x132A55 -> 90*6 (NOP)  数据有效性检查跳过
+  6. sub_14013366A @ 0x132A6A -> 90*6 (NOP)  @ 符号检查跳过
+  7. sub_140133678 @ 0x132A78 -> 90*6 (NOP)  @ 位置检查跳过
+  8. sub_14013180B @ 0x130C0B -> D4 03 00 00  版本号 Standard->Professional
+
+使用方法：
+  python bandizip_patcher.py           # 交互模式
+  python bandizip_patcher.py patch     # 直接 patch
+  python bandizip_patcher.py restore   # 恢复原始
+  python bandizip_patcher.py status    # 检查状态
+"""
+
+import os
+import sys
+import shutil
+import winreg
+
+# ============ 配置 ============
+BANDIZIP_DIR = r'D:\Apps\Bandizip'
+EXE_PATH = os.path.join(BANDIZIP_DIR, 'Bandizip.exe')
+BACKUP_PATH = EXE_PATH + '.bak'
+REG_KEY = r'SOFTWARE\Bandizip'
+REG_VALUE = 'Edition'
+REG_DATA = 'PRO'
+
+# Patch 定义: (文件偏移, 原始字节, 补丁字节, 描述)
+PATCHES = [
+    (0xD0CF0,  b'\x48\x89\x5C\x24\x08\x55', b'\xB0\x01\xC3',
+     'sub_1400D18F0 (online verify -> return 1)'),
+    (0xCED80,  b'\x48\x89\x5C\x24\x18\x55', b'\xB0\x01\xC3',
+     'sub_1400CF980 (registry write -> return 1)'),
+    (0xCE870,  b'\x4C\x8B\xDC\x49\x89\x5B', b'\xB0\x01\xC3',
+     'sub_1400CF470 (Edition check -> return 1)'),
+    (0x132A48, b'\x0F\x85\x4B\x06\x00\x00', b'\x90\x90\x90\x90\x90\x90',
+     'NOP: register code length check'),
+    (0x132A55, b'\x0F\x8C\x3E\x06\x00\x00', b'\x90\x90\x90\x90\x90\x90',
+     'NOP: data validity check'),
+    (0x132A6A, b'\x0F\x84\x29\x06\x00\x00', b'\x90\x90\x90\x90\x90\x90',
+     'NOP: @ symbol check'),
+    (0x132A78, b'\x0F\x8E\x1B\x06\x00\x00', b'\x90\x90\x90\x90\x90\x90',
+     'NOP: @ position check'),
+    (0x130C0B, b'\x98\x00\x00\x00',         b'\xD4\x03\x00\x00',
+     'Version: Standard(0x98) -> Professional(0x3D4)'),
+]
+
+
+def is_patched():
+    """检查是否已 patch"""
+    if not os.path.exists(EXE_PATH):
+        return False
+    with open(EXE_PATH, 'rb') as f:
+        for offset, orig, patch, desc in PATCHES:
+            f.seek(offset)
+            current = f.read(len(patch))
+            if current != patch:
+                return False
+    return True
+
+
+def is_backup_exists():
+    """检查备份是否存在"""
+    return os.path.exists(BACKUP_PATH)
+
+
+def is_bandizip_running():
+    """检查 Bandizip 是否正在运行"""
+    try:
+        import subprocess
+        result = subprocess.run(['tasklist', '/FI', 'IMAGENAME eq Bandizip.exe'],
+                                capture_output=True, text=True, timeout=5)
+        return 'Bandizip.exe' in result.stdout
+    except Exception:
+        return False
+
+
+def kill_bandizip():
+    """关闭 Bandizip 进程"""
+    try:
+        import subprocess
+        subprocess.run(['taskkill', '/F', '/IM', 'Bandizip.exe'],
+                       capture_output=True, timeout=5)
+        import time
+        time.sleep(2)
+        return True
+    except Exception:
+        return False
+
+
+def backup():
+    """备份原始文件"""
+    if is_backup_exists():
+        print('  [OK] Backup already exists: ' + BACKUP_PATH)
+        return True
+    try:
+        shutil.copy2(EXE_PATH, BACKUP_PATH)
+        print('  [OK] Backup created: ' + BACKUP_PATH)
+        return True
+    except PermissionError:
+        print('  [!] Permission denied. Run as Administrator.')
+        return False
+    except Exception as e:
+        print('  [!] Backup failed: ' + str(e))
+        return False
+
+
+def apply_patches():
+    """应用所有 patch"""
+    try:
+        with open(EXE_PATH, 'r+b') as f:
+            for offset, orig, patch, desc in PATCHES:
+                f.seek(offset)
+                current = f.read(len(patch))
+                if current == patch:
+                    print('  [SKIP] Already patched: ' + desc)
+                    continue
+                f.seek(offset)
+                f.write(patch)
+                print('  [OK] ' + desc)
+        return True
+    except PermissionError:
+        print('  [!] Permission denied. Close Bandizip and run as Administrator.')
+        return False
+    except Exception as e:
+        print('  [!] Patch failed: ' + str(e))
+        return False
+
+
+def restore():
+    """恢复原始文件"""
+    if not is_backup_exists():
+        print('  [!] No backup found: ' + BACKUP_PATH)
+        return False
+    try:
+        shutil.copy2(BACKUP_PATH, EXE_PATH)
+        print('  [OK] Restored from backup: ' + EXE_PATH)
+        return True
+    except PermissionError:
+        print('  [!] Permission denied. Close Bandizip and run as Administrator.')
+        return False
+    except Exception as e:
+        print('  [!] Restore failed: ' + str(e))
+        return False
+
+
+def set_registry():
+    """设置注册表 Edition = PRO"""
+    try:
+        with winreg.CreateKeyEx(winreg.HKEY_LOCAL_MACHINE, REG_KEY, 0,
+                                winreg.KEY_SET_VALUE) as key:
+            winreg.SetValueEx(key, REG_VALUE, 0, winreg.REG_SZ, REG_DATA)
+        print('  [OK] Registry: HKLM\\' + REG_KEY + '\\' + REG_VALUE + ' = ' + REG_DATA)
+        return True
+    except PermissionError:
+        print('  [!] Registry write denied. Run as Administrator.')
+        return False
+    except Exception as e:
+        print('  [!] Registry write failed: ' + str(e))
+        return False
+
+
+def check_status():
+    """检查当前状态"""
+    print('=' * 50)
+    print('  Bandizip Patcher - Status')
+    print('=' * 50)
+
+    # 文件存在
+    if os.path.exists(EXE_PATH):
+        print('  [OK] Bandizip.exe found: ' + EXE_PATH)
+    else:
+        print('  [!] Bandizip.exe not found: ' + EXE_PATH)
+        return
+
+    # 备份状态
+    if is_backup_exists():
+        print('  [OK] Backup exists')
+    else:
+        print('  [!] No backup')
+
+    # Patch 状态
+    patched_count = 0
+    total = len(PATCHES)
+    if os.path.exists(EXE_PATH):
+        with open(EXE_PATH, 'rb') as f:
+            for offset, orig, patch, desc in PATCHES:
+                f.seek(offset)
+                current = f.read(len(patch))
+                if current == patch:
+                    patched_count += 1
+                    status = '[PATCHED]'
+                elif current == orig:
+                    status = '[ORIGINAL]'
+                else:
+                    status = '[UNKNOWN]'
+                print('  ' + status + ' 0x{:06X}: '.format(offset) + desc)
+
+    print('')
+    print('  Patched: ' + str(patched_count) + '/' + str(total))
+
+    # 注册表状态
+    try:
+        with winreg.OpenKey(winreg.HKEY_LOCAL_MACHINE, REG_KEY) as key:
+            val, _ = winreg.QueryValueEx(key, REG_VALUE)
+            print('  [Registry] Edition = ' + val)
+    except Exception:
+        print('  [Registry] Edition not set')
+
+    # 进程状态
+    if is_bandizip_running():
+        print('  [WARNING] Bandizip is running! Close it before patching.')
+    else:
+        print('  [OK] Bandizip is not running')
+
+    print('=' * 50)
+
+
+def do_patch():
+    """执行完整 patch 流程"""
+    print('=' * 50)
+    print('  Bandizip Patcher - Apply')
+    print('=' * 50)
+
+    if not os.path.exists(EXE_PATH):
+        print('  [!] Bandizip.exe not found: ' + EXE_PATH)
+        return False
+
+    if is_bandizip_running():
+        print('  [..] Bandizip is running, closing...')
+        if not kill_bandizip():
+            print('  [!] Cannot close Bandizip. Close it manually.')
+            return False
+
+    print('\n  [1/3] Backup...')
+    if not backup():
+        return False
+
+    print('\n  [2/3] Patching...')
+    if not apply_patches():
+        return False
+
+    print('\n  [3/3] Registry...')
+    set_registry()
+
+    print('\n' + '=' * 50)
+    print('  [DONE] All patches applied successfully!')
+    print('  Use keygen to generate a product key.')
+    print('=' * 50)
+    return True
+
+
+def do_restore():
+    """执行恢复流程"""
+    print('=' * 50)
+    print('  Bandizip Patcher - Restore')
+    print('=' * 50)
+
+    if is_bandizip_running():
+        print('  [..] Bandizip is running, closing...')
+        if not kill_bandizip():
+            print('  [!] Cannot close Bandizip. Close it manually.')
+            return False
+
+    print('\n  [1/1] Restoring...')
+    if restore():
+        print('\n' + '=' * 50)
+        print('  [DONE] Restored to original.')
+        print('=' * 50)
+        return True
+    return False
+
+
+def main():
+    print('=' * 50)
+    print('  Bandizip Professional Patcher v1.0')
+    print('=' * 50)
+    print('')
+
+    if len(sys.argv) > 1:
+        cmd = sys.argv[1].lower()
+        if cmd == 'patch':
+            do_patch()
+            return
+        elif cmd == 'restore':
+            do_restore()
+            return
+        elif cmd == 'status':
+            check_status()
+            return
+        else:
+            print('  Usage: python bandizip_patcher.py [patch|restore|status]')
+            return
+
+    # 交互模式
+    print('  Commands:')
+    print('    1. Patch   - Apply all patches')
+    print('    2. Restore - Restore original file')
+    print('    3. Status  - Check current status')
+    print('    4. Exit')
+    print('')
+
+    try:
+        choice = input('  Select [1-4]: ').strip()
+    except EOFError:
+        choice = '1'
+
+    if choice == '1':
+        do_patch()
+    elif choice == '2':
+        do_restore()
+    elif choice == '3':
+        check_status()
+    else:
+        print('  Bye!')
+
+
+if __name__ == '__main__':
+    main()