diff -Nrub php-5.3.1/ext/standard/syslog.c php-5.3.1.new/ext/standard/syslog.c
--- php-5.3.1/ext/standard/syslog.c	2008-12-31 20:15:49.000000000 +0900
+++ php-5.3.1.new/ext/standard/syslog.c	2010-02-04 11:09:48.000000000 +0900
@@ -269,7 +269,16 @@
 		return;
 	}
 
+#ifdef PHP_WIN32
+	/* If using wide character with syslog(), call ReportEventW() */
+	if (INI_INT("syslog_widechar")) {
+		wsyslog(priority, "%s", message);
+	} else {
 	php_syslog(priority, "%s", message);
+	}
+#else
+	php_syslog(priority, "%s", message);
+#endif
 	RETURN_TRUE;
 }
 /* }}} */
diff -Nrub php-5.3.1/main/main.c php-5.3.1.new/main/main.c
--- php-5.3.1/main/main.c	2009-10-29 00:19:32.000000000 +0900
+++ php-5.3.1.new/main/main.c	2010-02-04 11:01:27.000000000 +0900
@@ -527,6 +527,9 @@
 	STD_PHP_INI_ENTRY("user_ini.filename",		".user.ini",	PHP_INI_SYSTEM,		OnUpdateString,		user_ini_filename,	php_core_globals,		core_globals)
 	STD_PHP_INI_ENTRY("user_ini.cache_ttl",		"300",			PHP_INI_SYSTEM,		OnUpdateLong,		user_ini_cache_ttl,	php_core_globals,		core_globals)
 	STD_PHP_INI_BOOLEAN("exit_on_timeout",		"0",		PHP_INI_ALL,		OnUpdateBool,			exit_on_timeout,			php_core_globals,	core_globals)
+#ifdef PHP_WIN32
+	PHP_INI_ENTRY("syslog_widechar",			NULL,		PHP_INI_ALL,		NULL)
+#endif
 PHP_INI_END()
 /* }}} */
 
diff -Nrub php-5.3.1/win32/syslog.h php-5.3.1.new/win32/syslog.h
--- php-5.3.1/win32/syslog.h	2008-12-31 20:15:49.000000000 +0900
+++ php-5.3.1.new/win32/syslog.h	2010-02-03 15:50:10.000000000 +0900
@@ -26,7 +26,7 @@
 #define	LOG_EMERG	1
 #define	LOG_ALERT	1
 #define	LOG_CRIT	1
-#define	LOG_ERR		4
+#define	LOG_ERR		1
 #define	LOG_WARNING	5
 #define	LOG_NOTICE	6
 #define	LOG_INFO	6
diff -Nrub php-5.3.1/win32/wsyslog.c php-5.3.1.new/win32/wsyslog.c
--- php-5.3.1/win32/wsyslog.c	2006-01-16 23:26:07.000000000 +0900
+++ php-5.3.1.new/win32/wsyslog.c	2010-02-04 11:07:05.000000000 +0900
@@ -114,6 +114,52 @@
 	efree(tmp);
 }
 
+/* Use unicode as message string
+ * This is a alternative choise of syslog() function for multi-byte users
+ */
+void wsyslog(int priority, const char *message, ...)
+{
+	va_list args;
+	LPWSTR wstrs[2];    /* for wide characters such as UTF-8 */
+	int required_size;  /* message length as wide characters */
+	unsigned short etype;
+	char *tmp = NULL;
+	DWORD evid;
+	TSRMLS_FETCH();
+
+	/* default event source */
+	if (!PW32G(log_source))
+		openlog("php", LOG_PID, LOG_SYSLOG);
+
+	switch (priority) {			/* translate UNIX type into NT type */
+		case LOG_ALERT:
+			etype = EVENTLOG_ERROR_TYPE;
+			evid = PHP_SYSLOG_ERROR_TYPE;
+			break;
+		case LOG_INFO:
+			etype = EVENTLOG_INFORMATION_TYPE;
+			evid = PHP_SYSLOG_INFO_TYPE;
+			break;
+		default:
+			etype = EVENTLOG_WARNING_TYPE;
+			evid = PHP_SYSLOG_WARNING_TYPE;
+	}
+	va_start(args, message);	/* initialize vararg mechanism */
+	vspprintf(&tmp, 0, message, args);	/* build message */
+	/* Convert multi-byte internal strings to WSTR with UTF8 codepage */
+	required_size = MultiByteToWideChar(CP_UTF8, 0, PW32G(log_header), -1, NULL, 0);
+	wstrs[0] = (LPWSTR)emalloc(sizeof(WCHAR) * required_size);
+	MultiByteToWideChar(CP_UTF8, 0, PW32G(log_header), -1, wstrs[0], required_size);
+	required_size = MultiByteToWideChar(CP_UTF8, 0, tmp, -1, NULL, 0);
+	wstrs[1] = (LPWSTR)emalloc(sizeof(WCHAR) * required_size);
+	MultiByteToWideChar(CP_UTF8, 0, tmp, -1, wstrs[1], required_size);
+	/* report the event with unicode API */
+	ReportEventW(PW32G(log_source), etype, (unsigned short) priority, evid, NULL, 2, 0, wstrs, NULL);
+	va_end(args);
+	efree(tmp);
+	efree(wstrs[0]);
+	efree(wstrs[1]);
+}
 
 /* Emulator for BSD openlog() routine
  * Accepts: identity