From d4695a6d903f78ef6daa9ed7a47646bcb5c73a44 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Fri, 15 Jan 2016 13:03:25 +0530
Subject: [PATCH] ...

---
 src/calibre/utils/winreg/lib.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/calibre/utils/winreg/lib.py b/src/calibre/utils/winreg/lib.py
index 472d35dbba..cc4fee5af3 100644
--- a/src/calibre/utils/winreg/lib.py
+++ b/src/calibre/utils/winreg/lib.py
@@ -125,7 +125,7 @@ def convert_registry_data(raw, size, dtype):
     if dtype == win32con.REG_QWORD:
         if size == 0:
             return 0
-        return ctypes.cast(raw, ctypes.POINTER(types.QWORD)).contents.value
+        return ctypes.cast(raw, ctypes.POINTER(ctypes.c_uint64)).contents.value
     raise ValueError('Unsupported data type: %r' % dtype)
 
 try: