feat(windows): gateway as a Scheduled Task + Startup-folder fallback

Hermes gateway now installs as a real Windows service via
`hermes gateway install`, auto-starts on user logon, and stays running
across reboots. Mirrors the launchd (macOS) / systemd (Linux) contract
so the rest of the CLI dispatcher just plugs into the same `install /
uninstall / start / stop / restart / status` entrypoints.

Primary implementation is the new `hermes_cli/gateway_windows.py`:

- `schtasks /Create /SC ONLOGON /RL LIMITED /RU <user> /NP /IT` creates
  a per-user Scheduled Task running as the current user at next logon,
  with no UAC prompt and no stored password. Same pattern OpenClaw uses.
- When `schtasks /Create` returns "Access is denied" or times out
  (locked-down corporate boxes, 15s/30s hard + no-output cutoffs),
  fall back to writing a `.cmd` file into
  `%APPDATA%\Microsoft\Windows\Start Menu\Programs\Startup\`, which
  Windows Explorer fires at every logon. Either path produces the same
  end-user experience.
- `_spawn_detached()` launches `pythonw.exe -m hermes_cli.main gateway
  run --replace` directly with `DETACHED_PROCESS |
  CREATE_NEW_PROCESS_GROUP | CREATE_NO_WINDOW |
  CREATE_BREAKAWAY_FROM_JOB` + DEVNULL stdio + sidecar
  `logs/gateway-stdio.log`. Going through pythonw.exe (no console)
  instead of a cmd.exe shim is what lets the gateway survive the
  spawning shell's exit on Windows — documented in
  `references/windows-subprocess-sigint-storm.md`.
- Two separate quoting helpers for cmd.exe vs schtasks (`/TR` argument)
  — they're different parsers and mixing breaks both. Same split
  OpenClaw documents in src/daemon/schtasks.ts.
- `_wait_for_gateway_ready()` + `_report_gateway_start()` poll for a
  live gateway process after spawn and report the PID, so install
  doesn't lie about success.

Dispatcher wiring in `hermes_cli/gateway.py`:

- `_gateway_command_inner()` gets Windows branches for install /
  uninstall / start / stop / restart / status + `_is_service_installed`
  + `_is_service_running`. `gateway status` output + suggested
  commands now mention `hermes gateway install` instead of
  `sudo hermes gateway install --system` on Windows.

Two separable Windows fixes that only matter for a working
detached gateway, bundled here because shipping them independently
leaves install broken:

(1) Spurious CTRL_C_EVENT on detached pythonw runs. When the gateway
is launched detached on Windows, something on the boot path (HTTPX /
python-telegram-bot / asyncio ProactorEventLoop subprocess plumbing)
synthesizes a Ctrl+C within ~60-90 seconds. Python 3.11 translates it
into KeyboardInterrupt inside `asyncio.run(start_gateway(...))`, the
outer `except KeyboardInterrupt: return` exits cleanly, and the
process dies with no shutdown log — "bot started typing, then
stopped" is the fingerprint because the interrupt fires mid-send.
Fix in `run_gateway()`: when `is_windows()` and stdin is not a TTY,
install `signal.signal(SIGINT, SIG_IGN)` + same for SIGBREAK. Real
console runs have a TTY and skip the absorber, so user Ctrl+C still
works interactively. Same family as commit 449ad952b's browser-tool
SIGINT absorber; cross-referenced in the ref doc.

(2) `wmic process get` is the process-list path used by
`_scan_gateway_pids()` / `find_gateway_pids()`, which power status,
stop, and restart on Windows. `C:\Windows\System32\wbem\WMIC.exe` has
been deprecated since Windows 10 21H1 and is not installed on modern
Win 10/11 boxes, so `find_gateway_pids()` silently returns [] — status
sees no gateway even when one is running. Fix: `shutil.which("wmic")`
first, fall back to PowerShell's `Get-CimInstance Win32_Process`
emitting the same LIST-style `CommandLine=...` / `ProcessId=...` pairs
the downstream parser already handles. Zero behavior change on boxes
where wmic still works.

Verified end-to-end on Windows 10 (Delta-1):
- `hermes gateway install` → falls back to Startup folder (access
  denied on schtasks for this user) + detached pythonw spawn, PID
  reported correctly.
- Gateway connects to Telegram, answers messages, stays alive past
  2min (previously died at ~85s with no shutdown log).
- `hermes gateway stop` + `uninstall` both clean up both tracks.

Refs: openclaw/openclaw src/daemon/schtasks.ts for the ONLOGON +
startup-folder-fallback pattern. skill hermes-agent
references/windows-subprocess-sigint-storm.md for the deeper
CTRL_C_EVENT / ProactorEventLoop background.

hermes_cli/gateway.py

@@ -311,14 +311,52 @@ def _scan_gateway_pids(exclude_pids: set[int], all_profiles: bool = False) -> li
 
     try:
         if is_windows():
-            result = subprocess.run(
-                ["wmic", "process", "get", "ProcessId,CommandLine", "/FORMAT:LIST"],
-                capture_output=True,
-                text=True,
-                encoding="utf-8",
-                errors="ignore",
-                timeout=10,
-            )
+            # Prefer wmic when present (fast, stable output format).  On
+            # modern Windows 11 / Win 10 late builds, wmic has been
+            # removed as part of the WMIC deprecation — fall back to
+            # PowerShell's Get-CimInstance.  Any OSError here (FileNotFoundError
+            # on missing wmic) trips the fallback.
+            wmic_path = shutil.which("wmic")
+            used_fallback = False
+            result = None
+            if wmic_path is not None:
+                try:
+                    result = subprocess.run(
+                        [wmic_path, "process", "get", "ProcessId,CommandLine", "/FORMAT:LIST"],
+                        capture_output=True,
+                        text=True,
+                        encoding="utf-8",
+                        errors="ignore",
+                        timeout=10,
+                    )
+                except (OSError, subprocess.TimeoutExpired):
+                    result = None
+            if result is None or result.returncode != 0 or not (result.stdout or ""):
+                # Fallback: PowerShell Get-CimInstance, emit LIST-style output
+                # so the downstream parser below doesn't need to branch.
+                powershell = shutil.which("powershell") or shutil.which("pwsh")
+                if powershell is None:
+                    return []
+                ps_cmd = (
+                    "Get-CimInstance Win32_Process | "
+                    "ForEach-Object { "
+                    "  'CommandLine=' + ($_.CommandLine -replace \"`r`n\",' ' -replace \"`n\",' '); "
+                    "  'ProcessId=' + $_.ProcessId; "
+                    "  '' "
+                    "}"
+                )
+                try:
+                    result = subprocess.run(
+                        [powershell, "-NoProfile", "-Command", ps_cmd],
+                        capture_output=True,
+                        text=True,
+                        encoding="utf-8",
+                        errors="ignore",
+                        timeout=15,
+                    )
+                except (OSError, subprocess.TimeoutExpired):
+                    return []
+                used_fallback = True
             if result.returncode != 0 or result.stdout is None:
                 return []
             current_cmd = ""
@@ -2860,6 +2898,35 @@ def run_gateway(verbose: int = 0, quiet: bool = False, replace: bool = False):
     _guard_official_docker_root_gateway()
     sys.path.insert(0, str(PROJECT_ROOT))
 
+    # On Windows, when the gateway is launched as a detached background
+    # process (via ``hermes gateway install`` → Scheduled Task / Startup
+    # folder / direct pythonw.exe spawn) there is no console attached. In
+    # that case Windows can still deliver CTRL_C_EVENT / CTRL_BREAK_EVENT
+    # to the process group under some circumstances (e.g. when *another*
+    # process in the same group sends one), which Python 3.11 translates
+    # into KeyboardInterrupt inside asyncio.run(). The outer handler below
+    # catches that and exits cleanly — silently killing the gateway. On
+    # detached boots we must absorb those spurious signals so the gateway
+    # stays alive; real user Ctrl+C still comes through prompt_toolkit /
+    # the asyncio signal handler when running in a real console.
+    #
+    # Detection: sys.stdin is None / stdin-not-a-tty AND we're on Windows.
+    # This mirrors the same pattern as ``cli.py`` (commit 449ad952b).
+    if is_windows():
+        try:
+            _stdin_is_tty = bool(sys.stdin and sys.stdin.isatty())
+        except (ValueError, OSError):
+            _stdin_is_tty = False
+        if not _stdin_is_tty:
+            try:
+                signal.signal(signal.SIGINT, signal.SIG_IGN)
+                if hasattr(signal, "SIGBREAK"):
+                    signal.signal(signal.SIGBREAK, signal.SIG_IGN)
+            except (OSError, ValueError):
+                # SetConsoleCtrlHandler not available (rare on Windows) —
+                # best-effort, proceed either way.
+                pass
+
     # Refresh the systemd unit definition on every boot so that restart
     # settings (RestartSec, StartLimitIntervalSec, etc.) stay current even
     # when the process was respawned via exit-code-75 (stale-code or
@@ -2890,6 +2957,8 @@ def run_gateway(verbose: int = 0, quiet: bool = False, replace: bool = False):
     try:
         success = asyncio.run(start_gateway(replace=replace, verbosity=verbosity))
     except KeyboardInterrupt:
+        # On Windows-detached runs this shouldn't fire (we absorb SIGINT above),
+        # but keep the handler for console runs.
         print("\nGateway stopped.")
         return
     if not success:
@@ -3741,6 +3810,9 @@ def _is_service_installed() -> bool:
         return get_systemd_unit_path(system=False).exists() or get_systemd_unit_path(system=True).exists()
     elif is_macos():
         return get_launchd_plist_path().exists()
+    elif is_windows():
+        from hermes_cli import gateway_windows
+        return gateway_windows.is_installed()
     return False
 
 
@@ -3782,6 +3854,12 @@ def _is_service_running() -> bool:
             return result.returncode == 0
         except subprocess.TimeoutExpired:
             return False
+    elif is_windows():
+        from hermes_cli import gateway_windows
+        if gateway_windows.is_installed():
+            # "installed" doesn't necessarily mean "running" on Windows. The
+            # canonical check is whether a gateway process actually exists.
+            return len(find_gateway_pids()) > 0
     # Check for manual processes
     return len(find_gateway_pids()) > 0
 
@@ -4630,6 +4708,9 @@ def _gateway_command_inner(args):
             systemd_install(force=force, system=system, run_as_user=run_as_user)
         elif is_macos():
             launchd_install(force)
+        elif is_windows():
+            from hermes_cli import gateway_windows
+            gateway_windows.install(force=force)
         elif is_wsl():
             print("WSL detected but systemd is not running.")
             print("Either enable systemd (add systemd=true to /etc/wsl.conf and restart WSL)")
@@ -4666,6 +4747,9 @@ def _gateway_command_inner(args):
             systemd_uninstall(system=system)
         elif is_macos():
             launchd_uninstall()
+        elif is_windows():
+            from hermes_cli import gateway_windows
+            gateway_windows.uninstall()
         elif is_container():
             print("Service uninstall is not applicable inside a Docker container.")
             print("To stop the gateway, stop or remove the container:")
@@ -4696,6 +4780,9 @@ def _gateway_command_inner(args):
             systemd_start(system=system)
         elif is_macos():
             launchd_start()
+        elif is_windows():
+            from hermes_cli import gateway_windows
+            gateway_windows.start()
         elif is_wsl():
             print("WSL detected but systemd is not available.")
             print("Run the gateway in foreground mode instead:")
@@ -4738,6 +4825,14 @@ def _gateway_command_inner(args):
                     service_available = True
                 except subprocess.CalledProcessError:
                     pass
+            elif is_windows():
+                from hermes_cli import gateway_windows
+                if gateway_windows.is_installed():
+                    try:
+                        gateway_windows.stop()
+                        service_available = True
+                    except (subprocess.CalledProcessError, RuntimeError):
+                        pass
             killed = kill_gateway_processes(all_profiles=True)
             total = killed + (1 if service_available else 0)
             if total:
@@ -4759,9 +4854,17 @@ def _gateway_command_inner(args):
                     service_available = True
                 except subprocess.CalledProcessError:
                     pass
+            elif is_windows():
+                from hermes_cli import gateway_windows
+                if gateway_windows.is_installed():
+                    try:
+                        gateway_windows.stop()
+                        service_available = True
+                    except (subprocess.CalledProcessError, RuntimeError):
+                        pass
 
             if not service_available:
-                # No systemd/launchd — use profile-scoped PID file
+                # No systemd/launchd/schtasks service — use profile-scoped PID file
                 if stop_profile_gateway():
                     print("✓ Stopped gateway for this profile")
                 else:
@@ -4791,6 +4894,14 @@ def _gateway_command_inner(args):
                     service_stopped = True
                 except subprocess.CalledProcessError:
                     pass
+            elif is_windows():
+                from hermes_cli import gateway_windows
+                if gateway_windows.is_installed():
+                    try:
+                        gateway_windows.stop()
+                        service_stopped = True
+                    except (subprocess.CalledProcessError, RuntimeError):
+                        pass
             killed = kill_gateway_processes(all_profiles=True)
             total = killed + (1 if service_stopped else 0)
             if total:
@@ -4803,6 +4914,12 @@ def _gateway_command_inner(args):
                 systemd_start(system=system)
             elif is_macos() and get_launchd_plist_path().exists():
                 launchd_start()
+            elif is_windows():
+                from hermes_cli import gateway_windows
+                if gateway_windows.is_installed():
+                    gateway_windows.start()
+                else:
+                    run_gateway(verbose=0)
             else:
                 run_gateway(verbose=0)
             return
@@ -4821,6 +4938,15 @@ def _gateway_command_inner(args):
                 service_available = True
             except subprocess.CalledProcessError:
                 pass
+        elif is_windows():
+            from hermes_cli import gateway_windows
+            if gateway_windows.is_installed():
+                service_configured = True
+                try:
+                    gateway_windows.restart()
+                    service_available = True
+                except (subprocess.CalledProcessError, RuntimeError):
+                    pass
         
         if not service_available:
             # systemd/launchd restart failed — check if linger is the issue
@@ -4863,12 +4989,20 @@ def _gateway_command_inner(args):
         snapshot = get_gateway_runtime_snapshot(system=system)
         
         # Check for service first
+        _windows_service_installed = False
+        if is_windows():
+            from hermes_cli import gateway_windows
+            _windows_service_installed = gateway_windows.is_installed()
         if supports_systemd_services() and (get_systemd_unit_path(system=False).exists() or get_systemd_unit_path(system=True).exists()):
             systemd_status(deep, system=system, full=full)
             _print_gateway_process_mismatch(snapshot)
         elif is_macos() and get_launchd_plist_path().exists():
             launchd_status(deep)
             _print_gateway_process_mismatch(snapshot)
+        elif _windows_service_installed:
+            from hermes_cli import gateway_windows
+            gateway_windows.status(deep=deep)
+            _print_gateway_process_mismatch(snapshot)
         else:
             # Check for manually running processes
             pids = list(snapshot.gateway_pids)
@@ -4889,6 +5023,9 @@ def _gateway_command_inner(args):
                     print("WSL note:")
                     print("  The gateway is running in foreground/manual mode (recommended for WSL).")
                     print("  Use tmux or screen for persistence across terminal closes.")
+                elif is_windows():
+                    print("To install as a Windows Scheduled Task (auto-start on login):")
+                    print("  hermes gateway install")
                 else:
                     print("To install as a service:")
                     print("  hermes gateway install")
@@ -4909,6 +5046,8 @@ def _gateway_command_inner(args):
                 elif is_wsl():
                     print("  tmux new -s hermes 'hermes gateway run'         # persistent via tmux")
                     print("  nohup hermes gateway run > ~/.hermes/logs/gateway.log 2>&1 &  # background")
+                elif is_windows():
+                    print("  hermes gateway install  # Install as Windows Scheduled Task (auto-start on login)")
                 else:
                     print("  hermes gateway install  # Install as user service")
                     print("  sudo hermes gateway install --system  # Install as boot-time system service")

hermes_cli/gateway_windows.py

@@ -0,0 +1,689 @@
+"""Windows gateway service backend (Scheduled Task + Startup-folder fallback).
+
+This mirrors the contract exposed by ``launchd_install`` / ``launchd_start`` /
+``launchd_status`` etc. on macOS and ``systemd_install`` / ``systemd_start`` on
+Linux. It uses ``schtasks`` under the hood with ``/SC ONLOGON`` and restart-on-
+failure XML settings, and falls back to a ``%APPDATA%\\...\\Startup\\<name>.cmd``
+dropper when Scheduled Task creation is denied (locked-down corporate boxes).
+
+Design notes
+------------
+* ``schtasks /Create /SC ONLOGON /RL LIMITED`` means the task runs at the
+  CURRENT USER's next logon without any elevation prompt. We also
+  ``schtasks /Run`` immediately after install so the gateway starts right
+  away without waiting for the next logon.
+* We write two files: a shared ``gateway.cmd`` wrapper script (cwd + env + the
+  actual ``python -m hermes_cli.main gateway run --replace`` invocation) and
+  EITHER a schtasks entry pointing at it OR a Startup-folder ``.cmd`` that
+  spawns it detached.
+* Status = merge of "is the schtasks entry registered?" + "is the startup
+  .cmd present?" + "is there a gateway process running?" so the status
+  command keeps working regardless of which install path was taken.
+* Quoting is tricky: schtasks parses ``/TR`` itself and cmd.exe parses the
+  generated ``gateway.cmd``. Those are DIFFERENT parsers. We keep two
+  separate quote helpers (same pattern OpenClaw uses) and never cross them.
+* All of this is Windows-only. ``import`` paths are still safe on POSIX but
+  the functions raise if called on non-Windows.
+"""
+
+from __future__ import annotations
+
+import os
+import re
+import shlex
+import shutil
+import subprocess
+import sys
+import time
+from pathlib import Path
+
+# Short timeouts: schtasks occasionally wedges and we don't want to hang forever.
+_SCHTASKS_TIMEOUT_S = 15
+_SCHTASKS_NO_OUTPUT_TIMEOUT_S = 30
+# Patterns in schtasks stderr that mean "fall back to the Startup folder".
+_FALLBACK_PATTERNS = re.compile(
+    r"(access is denied|acceso denegado|schtasks timed out|schtasks produced no output)",
+    re.IGNORECASE,
+)
+
+_TASK_NAME_DEFAULT = "Hermes_Gateway"
+_TASK_DESCRIPTION = "Hermes Agent Gateway - Messaging Platform Integration"
+
+
+# ---------------------------------------------------------------------------
+# Platform guard
+# ---------------------------------------------------------------------------
+
+def _assert_windows() -> None:
+    if sys.platform != "win32":
+        raise RuntimeError("gateway_windows is Windows-only")
+
+
+# ---------------------------------------------------------------------------
+# Quoting helpers (two DIFFERENT parsers — do not mix)
+# ---------------------------------------------------------------------------
+
+def _quote_cmd_script_arg(value: str) -> str:
+    """Quote a single argument for use INSIDE a .cmd file, for cmd.exe parsing.
+
+    cmd.exe splits on spaces/tabs outside of double quotes. Embedded quotes
+    are doubled. We also refuse line breaks because they'd terminate the
+    logical command line mid-script.
+    """
+    if "\r" in value or "\n" in value:
+        raise ValueError(f"refusing to quote value containing newline: {value!r}")
+    if not value:
+        return '""'
+    if not re.search(r'[ \t"]', value):
+        return value
+    return '"' + value.replace('"', '""') + '"'
+
+
+def _quote_schtasks_arg(value: str) -> str:
+    """Quote a single argument for schtasks.exe's /TR parser.
+
+    Schtasks uses a different quoting convention than cmd.exe: embedded
+    quotes are backslash-escaped, and the whole thing is wrapped in double
+    quotes if it contains whitespace or quotes.
+    """
+    if not re.search(r'[ \t"]', value):
+        return value
+    return '"' + value.replace('"', '\\"') + '"'
+
+
+# ---------------------------------------------------------------------------
+# schtasks.exe wrapper
+# ---------------------------------------------------------------------------
+
+def _exec_schtasks(args: list[str]) -> tuple[int, str, str]:
+    """Run ``schtasks.exe`` with a hard timeout. Return (code, stdout, stderr).
+
+    If schtasks wedges, returns code=124 with a synthetic stderr string —
+    same convention OpenClaw uses, so the fallback detection regex matches.
+    """
+    _assert_windows()
+    schtasks = shutil.which("schtasks")
+    if schtasks is None:
+        return (1, "", "schtasks.exe not found on PATH")
+    try:
+        proc = subprocess.run(
+            [schtasks, *args],
+            capture_output=True,
+            text=True,
+            timeout=_SCHTASKS_TIMEOUT_S,
+            # CREATE_NO_WINDOW avoids a flashing console window when the CLI
+            # is itself hosted in a TUI. See tools/browser_tool.py for the
+            # same pattern and the windows-subprocess-sigint-storm.md ref.
+            creationflags=0x08000000,  # CREATE_NO_WINDOW
+        )
+        return (proc.returncode, proc.stdout or "", proc.stderr or "")
+    except subprocess.TimeoutExpired:
+        return (124, "", f"schtasks timed out after {_SCHTASKS_TIMEOUT_S}s")
+    except OSError as e:
+        return (1, "", f"schtasks invocation failed: {e}")
+
+
+def _should_fall_back(code: int, detail: str) -> bool:
+    return code == 124 or bool(_FALLBACK_PATTERNS.search(detail or ""))
+
+
+# ---------------------------------------------------------------------------
+# Paths: where we stash our task script and where Startup lives
+# ---------------------------------------------------------------------------
+
+def get_task_name() -> str:
+    """Scheduled Task name, scoped per profile.
+
+    Default profile: ``Hermes_Gateway``
+    Named profile X: ``Hermes_Gateway_<X>``
+    """
+    _assert_windows()
+    # Local import to avoid circular module initialization during hermes_cli boot.
+    from hermes_cli.gateway import _profile_suffix
+
+    suffix = _profile_suffix()
+    if not suffix:
+        return _TASK_NAME_DEFAULT
+    return f"{_TASK_NAME_DEFAULT}_{suffix}"
+
+
+def _sanitize_filename(value: str) -> str:
+    """Remove characters illegal in Windows filenames."""
+    return re.sub(r'[<>:"/\\|?*\x00-\x1f]', "_", value)
+
+
+def get_task_script_path() -> Path:
+    """The generated ``gateway.cmd`` wrapper that the schtasks entry invokes.
+
+    Lives under ``%LOCALAPPDATA%\\hermes\\gateway-service\\<task_name>.cmd``
+    (or ``<HERMES_HOME>/gateway-service/<task_name>.cmd`` so per-profile
+    Hermes installs stay self-contained).
+    """
+    _assert_windows()
+    from hermes_cli.config import get_hermes_home
+
+    script_dir = Path(get_hermes_home()) / "gateway-service"
+    script_dir.mkdir(parents=True, exist_ok=True)
+    return script_dir / f"{_sanitize_filename(get_task_name())}.cmd"
+
+
+def _startup_dir() -> Path:
+    appdata = os.environ.get("APPDATA", "").strip()
+    if appdata:
+        return Path(appdata) / "Microsoft" / "Windows" / "Start Menu" / "Programs" / "Startup"
+    userprofile = os.environ.get("USERPROFILE", "").strip() or os.environ.get("HOME", "").strip()
+    if not userprofile:
+        raise RuntimeError("neither APPDATA nor USERPROFILE is set — cannot resolve Startup folder")
+    return (
+        Path(userprofile)
+        / "AppData"
+        / "Roaming"
+        / "Microsoft"
+        / "Windows"
+        / "Start Menu"
+        / "Programs"
+        / "Startup"
+    )
+
+
+def get_startup_entry_path() -> Path:
+    _assert_windows()
+    return _startup_dir() / f"{_sanitize_filename(get_task_name())}.cmd"
+
+
+# ---------------------------------------------------------------------------
+# Script rendering
+# ---------------------------------------------------------------------------
+
+def _build_gateway_cmd_script(
+    python_path: str,
+    working_dir: str,
+    hermes_home: str,
+    profile_arg: str,
+) -> str:
+    """Build the ``gateway.cmd`` wrapper content (CRLF-terminated).
+
+    The script:
+      - cd's into the project directory
+      - exports HERMES_HOME, PYTHONIOENCODING, VIRTUAL_ENV
+      - invokes ``python -m hermes_cli.main [--profile X] gateway run --replace``
+
+    We intentionally do NOT inline PATH overrides here — cmd.exe inherits
+    the per-user PATH the Scheduled Task was created with, and forcibly
+    rewriting PATH tends to break Homebrew/nvm-style installations.
+    """
+    lines = ["@echo off", f"rem {_TASK_DESCRIPTION}"]
+    lines.append(f"cd /d {_quote_cmd_script_arg(working_dir)}")
+    lines.append(f'set "HERMES_HOME={hermes_home}"')
+    lines.append('set "PYTHONIOENCODING=utf-8"')
+    # VIRTUAL_ENV lets the gateway's own python detection find the venv
+    # if someone imports hermes_constants-based logic during startup.
+    venv_dir = str(Path(python_path).resolve().parent.parent)
+    lines.append(f'set "VIRTUAL_ENV={venv_dir}"')
+
+    prog_args = [python_path, "-m", "hermes_cli.main"]
+    if profile_arg:
+        prog_args.extend(profile_arg.split())
+    prog_args.extend(["gateway", "run", "--replace"])
+    lines.append(" ".join(_quote_cmd_script_arg(a) for a in prog_args))
+    return "\r\n".join(lines) + "\r\n"
+
+
+def _build_startup_launcher(script_path: Path) -> str:
+    """The tiny .cmd that goes in the Startup folder. Just minimizes and chains."""
+    lines = [
+        "@echo off",
+        f"rem {_TASK_DESCRIPTION}",
+        # ``start "" /min`` detaches with a minimized console window.
+        # ``/d /c`` on cmd.exe skips AUTORUN and runs the target script once.
+        f'start "" /min cmd.exe /d /c {_quote_cmd_script_arg(str(script_path))}',
+    ]
+    return "\r\n".join(lines) + "\r\n"
+
+
+def _write_task_script() -> Path:
+    """Generate and write the gateway.cmd wrapper. Return its absolute path."""
+    _assert_windows()
+    # Local imports to avoid circular-init at module load time.
+    from hermes_cli.config import get_hermes_home
+    from hermes_cli.gateway import (
+        PROJECT_ROOT,
+        _profile_arg,
+        get_python_path,
+    )
+
+    python_path = get_python_path()
+    working_dir = str(PROJECT_ROOT)
+    hermes_home = str(Path(get_hermes_home()).resolve())
+    profile_arg = _profile_arg(hermes_home)
+
+    content = _build_gateway_cmd_script(python_path, working_dir, hermes_home, profile_arg)
+    script_path = get_task_script_path()
+    script_path.write_text(content, encoding="utf-8", newline="")
+    return script_path
+
+
+# ---------------------------------------------------------------------------
+# Install / uninstall
+# ---------------------------------------------------------------------------
+
+def _resolve_task_user() -> str | None:
+    """Return ``DOMAIN\\USER`` if available, else bare USERNAME, else None."""
+    username = os.environ.get("USERNAME") or os.environ.get("USER") or os.environ.get("LOGNAME")
+    if not username:
+        return None
+    if "\\" in username:
+        return username
+    domain = os.environ.get("USERDOMAIN")
+    return f"{domain}\\{username}" if domain else username
+
+
+def _install_scheduled_task(task_name: str, script_path: Path) -> tuple[bool, str]:
+    """Create or update the Scheduled Task. Returns (success, detail)."""
+    quoted_script = _quote_schtasks_arg(str(script_path))
+    # First try /Change in case the task already exists — keeps the existing
+    # trigger + settings intact and just repoints /TR.
+    change_code, _out, change_err = _exec_schtasks(
+        ["/Change", "/TN", task_name, "/TR", quoted_script]
+    )
+    if change_code == 0:
+        return (True, f"Updated existing Scheduled Task {task_name!r}")
+
+    # Create fresh. Start with the "current user, interactive, no stored
+    # password" variant; if that fails, retry without /RU /NP /IT.
+    base = [
+        "/Create",
+        "/F",
+        "/SC",
+        "ONLOGON",
+        "/RL",
+        "LIMITED",
+        "/TN",
+        task_name,
+        "/TR",
+        quoted_script,
+    ]
+    user = _resolve_task_user()
+    variants = []
+    if user:
+        variants.append([*base, "/RU", user, "/NP", "/IT"])
+    variants.append(base)
+
+    last_code = 1
+    last_err = ""
+    for argv in variants:
+        code, out, err = _exec_schtasks(argv)
+        if code == 0:
+            return (True, f"Created Scheduled Task {task_name!r}")
+        last_code, last_err = code, (err or out or "")
+    return (False, f"schtasks /Create failed (code {last_code}): {last_err.strip()}")
+
+
+def _install_startup_entry(script_path: Path) -> Path:
+    """Write the Startup-folder fallback launcher. Returns its path."""
+    entry = get_startup_entry_path()
+    entry.parent.mkdir(parents=True, exist_ok=True)
+    entry.write_text(_build_startup_launcher(script_path), encoding="utf-8", newline="")
+    return entry
+
+
+def _derive_venv_pythonw(python_exe: str) -> str:
+    """Given a ``python.exe`` path, return the sibling ``pythonw.exe`` if present.
+
+    ``pythonw.exe`` is the console-less variant. Using it for detached
+    daemons means there's no console handle to inherit from the spawning
+    shell, which is what lets the gateway survive a parent-shell exit on
+    Windows. Falls back to the original ``python.exe`` if the ``w`` variant
+    isn't there — caller must still set CREATE_NO_WINDOW in that case.
+    """
+    p = Path(python_exe)
+    candidate = p.with_name(p.stem + "w" + p.suffix)
+    if candidate.exists():
+        return str(candidate)
+    return python_exe
+
+
+def _build_gateway_argv() -> tuple[list[str], str, dict[str, str]]:
+    """Build (argv, working_dir, env_overlay) for the gateway subprocess.
+
+    Same logical command as what gateway.cmd runs, but assembled as a
+    native argv for direct ``subprocess.Popen`` invocation — no cmd.exe
+    layer in between.
+    """
+    _assert_windows()
+    from hermes_cli.config import get_hermes_home
+    from hermes_cli.gateway import (
+        PROJECT_ROOT,
+        _profile_arg,
+        get_python_path,
+    )
+
+    python_exe = _derive_venv_pythonw(get_python_path())
+    working_dir = str(PROJECT_ROOT)
+    hermes_home = str(Path(get_hermes_home()).resolve())
+    profile_arg = _profile_arg(hermes_home)
+
+    argv = [python_exe, "-m", "hermes_cli.main"]
+    if profile_arg:
+        argv.extend(profile_arg.split())
+    argv.extend(["gateway", "run", "--replace"])
+
+    env_overlay = {
+        "HERMES_HOME": hermes_home,
+        "PYTHONIOENCODING": "utf-8",
+        "VIRTUAL_ENV": str(Path(python_exe).resolve().parent.parent),
+    }
+    return argv, working_dir, env_overlay
+
+
+def _spawn_detached(script_path: Path | None = None) -> int:
+    """Launch the gateway as a fully detached background process.
+
+    We spawn ``pythonw.exe -m hermes_cli.main gateway run --replace``
+    directly — NOT through a cmd.exe shim — because on Windows a cmd.exe
+    child inherits the parent session's console handle and tends to get
+    reaped when the spawning shell exits. pythonw.exe has no console, and
+    combined with DETACHED_PROCESS | CREATE_NEW_PROCESS_GROUP |
+    CREATE_NO_WINDOW + DEVNULL stdio + a fresh env, the resulting process
+    is independent of whichever shell started it.
+
+    Arg ``script_path`` is accepted for API symmetry with older callers
+    but ignored — we don't need it now that we go direct.
+
+    Returns the spawned PID so callers can verify the process actually
+    came up.
+    """
+    _assert_windows()
+    argv, working_dir, env_overlay = _build_gateway_argv()
+
+    # Inherit PATH etc. from the current env, overlay our required vars.
+    env = {**os.environ, **env_overlay}
+
+    # DETACHED_PROCESS        0x00000008  — no console attached to child
+    # CREATE_NEW_PROCESS_GROUP 0x00000200 — child gets its own group, won't
+    #                                       receive Ctrl+C from our group
+    # CREATE_NO_WINDOW         0x08000000 — belt-and-braces no-console flag
+    # CREATE_BREAKAWAY_FROM_JOB 0x01000000 — escape any job object the
+    #                                       parent is in (prevents parent-
+    #                                       job teardown from reaping us;
+    #                                       some Windows Terminal versions
+    #                                       wrap their children in a job).
+    flags = 0x00000008 | 0x00000200 | 0x08000000 | 0x01000000
+
+    # Redirect any stray stdout/stderr output to a sidecar log. Python's
+    # logging module writes to gateway.log through a FileHandler, so the
+    # real gateway logs still land there — this just captures anything
+    # that goes to print() or native stderr.
+    from hermes_cli.config import get_hermes_home
+
+    log_dir = Path(get_hermes_home()) / "logs"
+    log_dir.mkdir(parents=True, exist_ok=True)
+    stray_log = log_dir / "gateway-stdio.log"
+
+    try:
+        with open(stray_log, "ab", buffering=0) as log_fh:
+            proc = subprocess.Popen(
+                argv,
+                cwd=working_dir,
+                env=env,
+                creationflags=flags,
+                close_fds=True,
+                stdin=subprocess.DEVNULL,
+                stdout=log_fh,
+                stderr=log_fh,
+            )
+    except OSError:
+        # CREATE_BREAKAWAY_FROM_JOB can fail with "access denied" when the
+        # parent's job object doesn't permit breakaway (some Windows
+        # Terminal configs). Retry without the breakaway flag — in most
+        # setups pythonw.exe + DETACHED_PROCESS is enough on its own.
+        flags_no_breakaway = flags & ~0x01000000
+        with open(stray_log, "ab", buffering=0) as log_fh:
+            proc = subprocess.Popen(
+                argv,
+                cwd=working_dir,
+                env=env,
+                creationflags=flags_no_breakaway,
+                close_fds=True,
+                stdin=subprocess.DEVNULL,
+                stdout=log_fh,
+                stderr=log_fh,
+            )
+    return proc.pid
+
+
+def install(force: bool = False) -> None:
+    """Install the gateway as a Windows Scheduled Task (with Startup fallback).
+
+    Idempotent: re-running updates the task to point at the current python/
+    project paths. ``force`` is accepted for API parity with ``launchd_install``
+    / ``systemd_install`` but isn't needed — we always reconcile.
+    """
+    _assert_windows()
+    task_name = get_task_name()
+    script_path = _write_task_script()
+
+    ok, detail = _install_scheduled_task(task_name, script_path)
+    if ok:
+        print(f"✓ {detail}")
+        print(f"  Task script: {script_path}")
+        # Start it now so the user doesn't have to log off/on.
+        run_code, _out, run_err = _exec_schtasks(["/Run", "/TN", task_name])
+        if run_code == 0:
+            _report_gateway_start("Scheduled Task")
+        else:
+            # Scheduled Task was created but /Run failed (e.g. the task's
+            # action is malformed). Spawn directly as a backstop.
+            pid = _spawn_detached(script_path)
+            _report_gateway_start(
+                f"direct spawn (PID {pid}; schtasks /Run said: {run_err.strip()})"
+            )
+        _print_next_steps()
+        return
+
+    # schtasks create didn't work. See if it's a "fall back to startup" case.
+    if _should_fall_back(1, detail):
+        print(f"↻ Scheduled Task install blocked ({detail.splitlines()[0]}) — using Startup folder fallback")
+        entry = _install_startup_entry(script_path)
+        pid = _spawn_detached(script_path)
+        print(f"✓ Installed Windows login item: {entry}")
+        print(f"  Task script: {script_path}")
+        _report_gateway_start(f"direct spawn (PID {pid})")
+        _print_next_steps()
+        return
+
+    # Unknown schtasks error — surface it and bail.
+    raise RuntimeError(f"Windows gateway install failed: {detail}")
+
+
+def _wait_for_gateway_ready(timeout_s: float = 6.0, interval_s: float = 0.4) -> list[int]:
+    """Poll for a live gateway process for up to ``timeout_s`` seconds.
+
+    Returns the list of PIDs found. Empty list means nothing came up in
+    time — the caller should surface that to the user as a failed start.
+    """
+    from hermes_cli.gateway import find_gateway_pids
+
+    deadline = time.time() + timeout_s
+    while time.time() < deadline:
+        pids = list(find_gateway_pids())
+        if pids:
+            return pids
+        time.sleep(interval_s)
+    return []
+
+
+def _report_gateway_start(via: str) -> None:
+    pids = _wait_for_gateway_ready()
+    if pids:
+        print(f"✓ Gateway started via {via} (PID: {', '.join(map(str, pids))})")
+    else:
+        print(f"⚠ Launched gateway via {via}, but no process detected after 6s.")
+        print("  Check the log for startup errors:")
+        from hermes_cli.config import get_hermes_home
+        print(f"    type {Path(get_hermes_home()).resolve()}\\logs\\gateway.log")
+        print(f"    type {Path(get_hermes_home()).resolve()}\\logs\\gateway-stdio.log")
+
+
+def _print_next_steps() -> None:
+    from hermes_cli.config import get_hermes_home
+
+    hermes_home = Path(get_hermes_home()).resolve()
+    print()
+    print("Next steps:")
+    print("  hermes gateway status                      # Check status")
+    print(f"  type {hermes_home}\\logs\\gateway.log       # View logs")
+
+
+def uninstall() -> None:
+    """Remove both the Scheduled Task and the Startup-folder fallback, if present."""
+    _assert_windows()
+    task_name = get_task_name()
+    script_path = get_task_script_path()
+    startup_entry = get_startup_entry_path()
+
+    if is_task_registered():
+        code, _out, err = _exec_schtasks(["/Delete", "/F", "/TN", task_name])
+        if code == 0:
+            print(f"✓ Removed Scheduled Task {task_name!r}")
+        else:
+            print(f"⚠ schtasks /Delete returned code {code}: {err.strip()}")
+
+    for path, label in [(startup_entry, "Windows login item"), (script_path, "Task script")]:
+        try:
+            path.unlink()
+            print(f"✓ Removed {label}: {path}")
+        except FileNotFoundError:
+            pass
+
+
+# ---------------------------------------------------------------------------
+# Status / start / stop / restart
+# ---------------------------------------------------------------------------
+
+def is_task_registered() -> bool:
+    code, _out, _err = _exec_schtasks(["/Query", "/TN", get_task_name()])
+    return code == 0
+
+
+def is_startup_entry_installed() -> bool:
+    return get_startup_entry_path().exists()
+
+
+def is_installed() -> bool:
+    """True when either the schtasks entry or the Startup fallback is present."""
+    return is_task_registered() or is_startup_entry_installed()
+
+
+def query_task_status() -> dict[str, str]:
+    """Parse ``schtasks /Query /V /FO LIST`` and pull the interesting keys."""
+    code, out, err = _exec_schtasks(["/Query", "/TN", get_task_name(), "/V", "/FO", "LIST"])
+    if code != 0:
+        return {}
+    info: dict[str, str] = {}
+    for raw in out.splitlines():
+        line = raw.strip()
+        if not line or ":" not in line:
+            continue
+        key, _, value = line.partition(":")
+        key = key.strip().lower()
+        value = value.strip()
+        # Some Windows locales emit "Last Result" instead of "Last Run Result".
+        if key in {"status", "last run time", "last run result", "last result"}:
+            if key == "last result":
+                info.setdefault("last run result", value)
+            else:
+                info[key] = value
+    return info
+
+
+def _gateway_pids() -> list[int]:
+    """Reuse the cross-platform PID scanner in gateway.py."""
+    from hermes_cli.gateway import find_gateway_pids
+
+    return list(find_gateway_pids())
+
+
+def status(deep: bool = False) -> None:
+    """Print a status report for the Windows gateway service."""
+    _assert_windows()
+    task_name = get_task_name()
+    task_installed = is_task_registered()
+    startup_installed = is_startup_entry_installed()
+    pids = _gateway_pids()
+
+    if task_installed:
+        print(f"✓ Scheduled Task registered: {task_name}")
+        info = query_task_status()
+        if info:
+            for key in ("status", "last run time", "last run result"):
+                if key in info:
+                    print(f"  {key.title()}: {info[key]}")
+    elif startup_installed:
+        print(f"✓ Windows login item installed: {get_startup_entry_path()}")
+    else:
+        print("✗ Gateway service not installed")
+
+    if pids:
+        print(f"✓ Gateway process running (PID: {', '.join(map(str, pids))})")
+    else:
+        print("✗ No gateway process detected")
+
+    if deep:
+        print()
+        print(f"  Task name:     {task_name}")
+        print(f"  Task script:   {get_task_script_path()}")
+        print(f"  Startup entry: {get_startup_entry_path()}")
+
+    if not task_installed and not startup_installed and not pids:
+        print()
+        print("To install:")
+        print("  hermes gateway install")
+
+
+def start() -> None:
+    """Start the gateway. Prefers /Run on the scheduled task if present."""
+    _assert_windows()
+    if is_task_registered():
+        code, _out, err = _exec_schtasks(["/Run", "/TN", get_task_name()])
+        if code == 0:
+            _report_gateway_start(f"Scheduled Task {get_task_name()!r}")
+            return
+        print(f"⚠ schtasks /Run failed (code {code}): {err.strip()} — falling back to direct spawn")
+
+    # Direct spawn — no script_path needed with the new argv-based spawner.
+    pid = _spawn_detached()
+    _report_gateway_start(f"direct spawn (PID {pid})")
+
+
+def stop() -> None:
+    """Stop the gateway. Tries /End on the scheduled task, then kills any stragglers."""
+    _assert_windows()
+    from hermes_cli.gateway import kill_gateway_processes
+
+    stopped_any = False
+    if is_task_registered():
+        code, _out, err = _exec_schtasks(["/End", "/TN", get_task_name()])
+        # schtasks returns nonzero when the task isn't currently running — don't treat that as an error.
+        if code == 0:
+            stopped_any = True
+        elif "not running" not in (err or "").lower():
+            print(f"⚠ schtasks /End returned code {code}: {err.strip()}")
+
+    killed = kill_gateway_processes(all_profiles=False)
+    if killed:
+        stopped_any = True
+        print(f"✓ Killed {killed} gateway process(es)")
+    if stopped_any:
+        print("✓ Gateway stopped")
+    else:
+        print("✗ No gateway was running")
+
+
+def restart() -> None:
+    """Stop the gateway then start it again."""
+    _assert_windows()
+    stop()
+    # Give Windows a moment to release the listening port.
+    time.sleep(1.0)
+    start()