diff --git a/.github/workflows/mikrotik_patch.yml b/.github/workflows/mikrotik_patch.yml
index cf7d827..8e895dc 100644
--- a/.github/workflows/mikrotik_patch.yml
+++ b/.github/workflows/mikrotik_patch.yml
@@ -83,10 +83,16 @@ jobs:
         echo Latest Stabel Version:$LATEST_VERSION
         echo "LATEST_VERSION=${LATEST_VERSION}" >> $GITHUB_ENV
 
-    - name: Create keygen 
+    - name: Get netinstall-${{ env.LATEST_VERSION }}.zip
       run: |
-       zip keygen.zip ./keygen.exe
-          
+        sudo wget -nv -O netinstall-$LATEST_VERSION.zip https://download.mikrotik.com/routeros/$LATEST_VERSION/netinstall-$LATEST_VERSION.zip
+        sudo unzip netinstall-$LATEST_VERSION.zip
+    - name: Patch netinstall-${{ env.LATEST_VERSION }}.exe
+      run: |
+        sudo -E python3 patch.py netinstall netinstall-$LATEST_VERSION.exe
+        sudo zip netinstall-$LATEST_VERSION.zip ./netinstall-$LATEST_VERSION.exe
+
+
     - name: Get mikrotik-${{ env.LATEST_VERSION }}.iso
       run: |
         sudo wget -nv -O mikrotik-$LATEST_VERSION.iso https://download.mikrotik.com/routeros/$LATEST_VERSION/mikrotik-$LATEST_VERSION.iso
@@ -103,7 +109,7 @@ jobs:
         sudo rm -rf ./iso
         sudo rm -f mikrotik-$LATEST_VERSION.iso
         sudo mv ./new_iso/routeros-$LATEST_VERSION.npk ./
-        sudo -E python3 patch.py routeros-$LATEST_VERSION.npk
+        sudo -E python3 patch.py npk routeros-$LATEST_VERSION.npk
         sudo cp keygen.exe ./new_iso/
         NPK_FILES=$(find ./new_iso/*.npk)
         for file in $NPK_FILES; do
@@ -163,16 +169,16 @@ jobs:
     - name: Delete Release tag ${{ env.LATEST_VERSION }}
       run: |
         HEADER="Authorization: token ${{ secrets.GITHUB_TOKEN }}"
-        RELEASE_INFO=$(curl -s -H $HEADER https://api.github.com/repos/${{ github.repository }}/releases/tags/${{ env.LATEST_VERSION }})
+        RELEASE_INFO=$(curl -s -H $HEADER https://api.github.com/repos/${{ github.repository }}/releases/tags/$LATEST_VERSION)
         RELEASE_ID=$(echo $RELEASE_INFO | jq -r '.id')
         echo "Release ID: $RELEASE_ID"
         if [ "$RELEASE_ID" != "null" ]; then
-            curl -X DELETE -H "$HEADER" https://api.github.com/repos/${{ github.repository }}/git/refs/tags/${{ env.LATEST_VERSION }}
-            echo "Tag ${{ env.LATEST_VERSION }} deleted successfully."
+            curl -X DELETE -H "$HEADER" https://api.github.com/repos/${{ github.repository }}/git/refs/tags/$LATEST_VERSION
+            echo "Tag $LATEST_VERSION deleted successfully."
             curl -X DELETE -H "$HEADER" https://api.github.com/repos/${{ github.repository }}/releases/$RELEASE_ID
-            echo "Release with tag ${{ env.LATEST_VERSION }} deleted successfully."
+            echo "Release with tag $LATEST_VERSION deleted successfully."
         else
-            echo "Release not found for tag: ${{ env.LATEST_VERSION }})"
+            echo "Release not found for tag: $LATEST_VERSION)"
         fi
 
     - name: Create Release tag ${{ env.LATEST_VERSION }}
@@ -185,4 +191,5 @@ jobs:
         files: |
           mikrotik-${{ env.LATEST_VERSION }}.iso
           install-image-${{ env.LATEST_VERSION }}.zip
+          netinstall-${{ env.LATEST_VERSION }}.zip
 
diff --git a/keygen.exe b/keygen.exe
deleted file mode 100644
index c911fa0..0000000
Binary files a/keygen.exe and /dev/null differ
diff --git a/netinstall.py b/netinstall.py
new file mode 100644
index 0000000..27c0d9c
--- /dev/null
+++ b/netinstall.py
@@ -0,0 +1,108 @@
+import struct,lzma
+ROUTEROS_BOOT = {
+    129:{'arch':'power','name':'Powerboot','filter':lzma.FILTER_POWERPC},
+    130:{'arch':'e500','name':'e500_boot'},
+    131:{'arch':'mips','name':'Mips_boot'},
+    135:{'arch':'400','name':'440__boot'},
+    136:{'arch':'tile','name':'tile_boot'},
+    137:{'arch':'arm','name':'ARM__boot','filter':lzma.FILTER_ARMTHUMB},
+    138:{'arch':'mmips','name':'MMipsBoot'},
+    139:{'arch':'arm64','name':'ARM64__boot','filter':lzma.FILTER_ARMTHUMB},
+    143:{'arch':'x86_64','name':'x86_64boot'}
+}
+def find_7zXZ_data(data:bytes):
+    offset1 = 0
+    _data = data
+    while b'\xFD7zXZ\x00\x00\x01' in _data:
+        offset1 = offset1 + _data.index(b'\xFD7zXZ\x00\x00\x01') + 8
+        _data = _data[offset1:]
+    offset1 -= 8
+    offset2 = 0
+    _data = data
+    while b'\x00\x01\x59\x5A' in _data:
+        offset2 = offset2 + _data.index(b'\x00\x01\x59\x5A') + 4
+        _data = _data[offset2:]
+    offset2
+    return data[offset1:offset2] 
+
+def patch_elf(data: bytes,key_dict:dict,filter=None):
+    initrd_xz = find_7zXZ_data(data)
+    initrd = lzma.decompress(initrd_xz)
+    new_initrd = initrd  
+    for old_public_key,new_public_key in key_dict.items():
+        if old_public_key in new_initrd:
+            print(f'initramfs public key patched {old_public_key[:16].hex().upper()}...')
+            new_initrd = new_initrd.replace(old_public_key,new_public_key)
+
+    filters=[{"id":filter},{"id": lzma.FILTER_LZMA2, "preset": 9,}] if filter else [{"id": lzma.FILTER_LZMA2, "preset": 9,}] 
+    new_initrd_xz = lzma.compress(new_initrd,check=lzma.CHECK_CRC32,filters=filters)
+    assert len(new_initrd_xz) <= len(initrd_xz),'new initrd xz size is too big'
+  
+    new_initrd_xz = new_initrd_xz.ljust(len(initrd_xz),b'\0')
+    new_data = data.replace(initrd_xz,new_initrd_xz)
+    return new_data
+
+def patch_pe(data: bytes,key_dict:dict,filter=None):
+    vmlinux_xz_offset = data.index(b'\xFD7zXZ\x00\x00\x01')
+    vmlinux_xz_size = data.index(b'\x00\x01\x59\x5A') + 4 - vmlinux_xz_offset
+    vmlinux_xz = data[vmlinux_xz_offset:vmlinux_xz_offset+vmlinux_xz_size]
+    vmlinux = lzma.decompress(vmlinux_xz)
+    initrd_xz_offset = vmlinux.index(b'\xFD7zXZ\x00\x00\x01')
+    initrd_xz_size = vmlinux.index(b'\x00\x01\x59\x5A') + 4 - initrd_xz_offset
+    initrd_xz = vmlinux[initrd_xz_offset:initrd_xz_offset+initrd_xz_size]
+    initrd = lzma.decompress(initrd_xz)
+    new_initrd = initrd  
+    for old_public_key,new_public_key in key_dict.items():
+        if old_public_key in new_initrd:
+            print(f'initrd public key patched {old_public_key[:16].hex().upper()}...')
+            new_initrd = new_initrd.replace(old_public_key,new_public_key)
+
+    filters=[{"id":filter},{"id": lzma.FILTER_LZMA2, "preset": 9,}] if filter else [{"id": lzma.FILTER_LZMA2, "preset": 9,}] 
+    new_initrd_xz = lzma.compress(new_initrd,check=lzma.CHECK_CRC32,filters=filters)
+    assert len(new_initrd_xz) <= len(initrd_xz),'new initrd xz size is too big'
+  
+    new_initrd_xz = new_initrd_xz.ljust(len(initrd_xz),b'\0')
+    new_vmlinux = vmlinux.replace(initrd_xz,new_initrd_xz)
+
+    filters=[{"id":filter},{"id": lzma.FILTER_LZMA2, "preset": 9,}] if filter else [{"id": lzma.FILTER_LZMA2, "preset": 9,}] 
+    new_vmlinux_xz = lzma.compress(new_vmlinux,check=lzma.CHECK_CRC32,filters=filters)
+    assert len(new_vmlinux_xz) <= len(vmlinux_xz),'new vmlinux xz size is too big'
+
+    new_vmlinux_xz = new_vmlinux_xz.ljust(len(vmlinux_xz),b'\0')
+    new_data = data.replace(vmlinux_xz,new_vmlinux_xz)
+    return new_data
+    
+
+
+def patch_netinstall(key_dict: dict,input_file,output_file=None):
+    import pefile
+    with pefile.PE(input_file) as pe:
+        for resource in pe.DIRECTORY_ENTRY_RESOURCE.entries:
+            if resource.id == pefile.RESOURCE_TYPE["RT_RCDATA"]:
+                for sub_resource in resource.directory.entries:
+                    if sub_resource.id in ROUTEROS_BOOT:
+                        bootloader = ROUTEROS_BOOT[sub_resource.id]
+                        filter = bootloader.get("filter")
+                        print(f'found {bootloader["arch"]}({sub_resource.id}) bootloader')
+                        rva = sub_resource.directory.entries[0].data.struct.OffsetToData
+                        size = sub_resource.directory.entries[0].data.struct.Size
+                        data = pe.get_data(rva,size)
+                        assert len(data) -4 >= struct.unpack_from('<I',data)[0] ,f'bootloader data size mismathch'
+                        data = data[4:]
+                        try:
+                            if data[:2] == b'MZ':
+                                new_data = patch_pe(data,key_dict,filter)
+                            elif data[:4] == b'\x7FELF':
+                                new_data = patch_elf(data,key_dict,filter)
+                            else:
+                                raise Exception(f'unknown bootloader format {data[:4].hex().upper()}')
+                        except Exception as e:
+                            print(f'patch {bootloader["arch"]}({sub_resource.id}) bootloader failed {e}')
+                            new_data = data
+                        new_data = struct.pack("<I",len(new_data)) + new_data.ljust(len(data),b'\0')
+                        pe.set_bytes_at_rva(rva,new_data)
+        pe.write(output_file)
+
+from package import check_install_package
+check_install_package(['pefile'])
+
diff --git a/package.py b/package.py
new file mode 100644
index 0000000..0cab48d
--- /dev/null
+++ b/package.py
@@ -0,0 +1,32 @@
+def install_package(package, version="upgrade", index_url='https://mirrors.aliyun.com/pypi/simple/'):
+    from sys import executable
+    from subprocess import check_call
+    result = False
+    try:
+        if version.lower() == "upgrade":
+            result = check_call([executable, "-m", "pip", "install", package, "--upgrade", "-i", index_url])
+        else:
+            from pkg_resources import get_distribution
+            current_package_version = None
+            try:
+                current_package_version = get_distribution(package)
+            except Exception:
+                pass
+            if current_package_version is None or current_package_version != version:
+                installation_sign = "==" if ">=" not in version else ""
+                result = check_call([executable, "-m", "pip", "install", package + installation_sign + version, "-i", index_url])
+    except Exception as e:
+        print(e)
+        result = -1
+    return result    
+def check_package(package):
+    from importlib import import_module
+    try:
+        import_module(package)
+        return True
+    except ImportError:
+        return False 
+def check_install_package(packages):
+    for package in packages:
+        if not check_package(package): 
+            install_package(package)
\ No newline at end of file
diff --git a/patch.py b/patch.py
index eed1b7e..1fdd6ed 100644
--- a/patch.py
+++ b/patch.py
@@ -64,8 +64,8 @@ def patch_squashfs(path,key_dict):
                         data = data.replace(old_public_key,new_public_key)
                         open(file,'wb').write(data)
 
-def patch_system_npk(npk_file,key_dict):
-    npk = NovaPackage.load(npk_file)
+def patch_system_npk(key_dict,input_file,output_file=None):
+    npk = NovaPackage.load(input_file)
     file_container = NpkFileContainer.unserialize_from(npk[NpkPartID.FILE_CONTAINER].data)
     for item in file_container:
         if item.name == b'boot/EFI/BOOT/BOOTX64.EFI':
@@ -95,17 +95,35 @@ def patch_system_npk(npk_file,key_dict):
     kcdsa_private_key = bytes.fromhex(os.environ['CUSTOM_LICENSE_PRIVATE_KEY'])
     eddsa_private_key = bytes.fromhex(os.environ['CUSTOM_NPK_SIGN_PRIVATE_KEY'])
     npk.sign(kcdsa_private_key,eddsa_private_key)
-    npk.save(npk_file)
+    npk.save(output_file or input_file)
 
 if __name__ == '__main__':
-    import os,sys
+    
+    import argparse,os
+    parser = argparse.ArgumentParser(description='MikroTik patcher')
+    subparsers = parser.add_subparsers(dest="command")
+    npk_parser = subparsers.add_parser('npk',help='patch routeros.npk file')
+    npk_parser.add_argument('input',type=str, help='Input file')
+    npk_parser.add_argument('-o','--output',type=str,help='Output file')
+
+    netinstall_parser = subparsers.add_parser('netinstall',help='patch netinstall file')
+    netinstall_parser.add_argument('input',type=str, help='Input file')
+    netinstall_parser.add_argument('-o','--output',type=str,help='Output file')
+    args = parser.parse_args()
+
     key_dict = {
         bytes.fromhex(os.environ['MIKRO_LICENSE_PUBLIC_KEY']):bytes.fromhex(os.environ['CUSTOM_LICENSE_PUBLIC_KEY']),
         bytes.fromhex(os.environ['MIKRO_NPK_SIGN_PUBLIC_LKEY']):bytes.fromhex(os.environ['CUSTOM_NPK_SIGN_PUBLIC_KEY'])
     }
-    if len(sys.argv) == 2:
-        print(f'patching {sys.argv[1]} ...')
-        patch_system_npk(sys.argv[1],key_dict)
+    if args.command =='npk':
+        print(f'patching {args.input} ...')
+        patch_system_npk(key_dict,args.input)
+    elif args.command == 'netinstall':
+        from netinstall import patch_netinstall
+        print(f'patching {args.input} ...')
+        patch_netinstall(key_dict,args.input)
     else:
-        print('usage: python patch.py npk_file')
+        parser.print_help()
+
+
     
diff --git a/upgrade.py b/upgrade.py
new file mode 100644
index 0000000..9fc998d
--- /dev/null
+++ b/upgrade.py
@@ -0,0 +1,48 @@
+from mitmproxy import http
+import os
+class MwrAddon:
+    def request(self,flow: http.HTTPFlow) -> None:
+        if len(flow.request.path_components)==3 and flow.request.path_components[0] == 'routeros':
+            version = flow.request.path_components[1]
+            file = os.path.join(version,flow.request.path_components[2])
+            if flow.request.method == 'HEAD':
+                if os.path.exists(version) and os.path.isfile(file):
+                    flow.response = http.Response.make(
+                        status_code=200,
+                        headers={
+                            'Content-Type': 'application/octet-stream',
+                            'Accept-Ranges':'bytes',
+                            'Content-Length': str(os.stat(file).st_size),
+                        }
+                    )
+                else:
+                    flow.response = http.Response.make(status_code=404)
+            elif flow.request.method == 'GET' and flow.request.path_components[2].endswith('.npk'):
+                if os.path.exists(version) and os.path.isfile(file):
+                    flow.response = http.Response.make(
+                        status_code=200,
+                        content=open(file,'rb').read(),
+                        headers={'Content-Type': 'application/octet-stream',},
+                    )
+                else:
+                    flow.response = http.Response.make(status_code=404)
+addons = [MwrAddon()]
+async def start_listen(port):
+    from mitmproxy.tools.dump import DumpMaster
+    from mitmproxy import options
+    opts = options.Options(listen_host='0.0.0.0',listen_port=port,mode=['reverse:https://upgrade.mikrotik.com/'])
+    print(f'listening at *:{port}')
+    print(f'open http://127.0.0.1:{port}')
+    master = DumpMaster(opts)
+    master.addons.add(*addons)
+    try:
+        await master.run()
+    except KeyboardInterrupt:
+        master.shutdown()
+if __name__ == "__main__":
+    import asyncio
+    from package import check_install_package
+    check_install_package(['mitmproxy'])
+    print(f'ip dns static add name=upgrade.mikrotik.com address=<your ip address>')
+    print(f'ip dns cache flush')
+    asyncio.run(start_listen(80)) 
\ No newline at end of file