🪟 The Mystery of the Windows Service Black Window — NSSM + .cmd = Popup That Will Not Close
Config | Windows | 2026-03-07 🪟 The Windows Service Black Window — NSSM + .cmd always spawns a visible console window. Switched to Task Scheduler + VBS hidden launch: WshShell.Run with window style 0 to silently run the service.
🪟 The Mystery of the Windows Service Black Window — NSSM + .cmd = Popup That Will Not Close
🔴 Problem: Registered OpenClaw Gateway as a Windows service using NSSM — every startup spawns a black command prompt window that cannot be closed.
🔍 Root Cause: NSSM + .cmd combination inherently pops up windows. This is a known Windows service behavior.
✅ Fix: Switched to Task Scheduler + VBS hidden launch: gateway.vbs using WshShell.Run cmd, 0 (0 = hide window)
🛡️ How to Avoid:
1. Preferred Windows silent launch: Task Scheduler + VBS, not NSSM
2. VBS template: WshShell.Run """your.cmd""", 0, False
3. Task Scheduler trigger: "On user logon", run wscript.exe gateway.vbs
4. openclaw gateway run is foreground; openclaw gateway start is background
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