From bd16e3120bc3af25e973ce92f53939e6e9ea6502 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Sat, 24 May 2025 13:18:59 +0530
Subject: [PATCH] Windows: Prevent Windows 11 from starting a conhost.exe
 process for ever calibre worker process

Apparently on modern windows we need DETACHED_PROCESS not
CREATE_NO_WINDOW. Sigh.

See #2111559 (Fetching news, wrong path for conhost.exe)
---
 src/calibre/utils/ipc/launch.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/calibre/utils/ipc/launch.py b/src/calibre/utils/ipc/launch.py
index b590c81931..df73c4da48 100644
--- a/src/calibre/utils/ipc/launch.py
+++ b/src/calibre/utils/ipc/launch.py
@@ -80,7 +80,7 @@ def windows_creationflags_for_worker_process(priority: str = 'normal') -> int:
         'high'  : subprocess.HIGH_PRIORITY_CLASS,
         'normal': subprocess.NORMAL_PRIORITY_CLASS,
         'low'   : subprocess.IDLE_PRIORITY_CLASS
-    }[priority] | subprocess.CREATE_NO_WINDOW
+    }[priority] | subprocess.DETACHED_PROCESS
 
 
 class Worker: