# HG changeset patch
# User Igor Sysoev <igor@sysoev.ru>
# Date 1169151796 0
# Node ID 5d9451a01c5dd0de2b5ae026cc8ca0597e65b11c
# Parent  8865ca5ff560111fe6f27384abc4dd36105cd767
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diff --git a/src/os/win32/ngx_files.h b/src/os/win32/ngx_files.h
--- a/src/os/win32/ngx_files.h
+++ b/src/os/win32/ngx_files.h
@@ -27,6 +27,9 @@
 #define NGX_FILE_ERROR              0
 
 
+/*
+ * FILE_FLAG_BACKUP_SEMANTICS allows to obtain a handle to a directory
+ */
 
 #define ngx_open_file(name, mode, create, access)                            \
     CreateFile((const char *) name, mode,                                    \