diff --git "a/D:\\_Sandbox\\curl\\curl-src\\lib\\curl_threads.h.orig" "b/D:\\_Sandbox\\curl\\curl-src\\lib\\curl_threads.h"
index e10b7a1..22fdb49 100644
--- "a/lib/curl_threads.h"
+++ "b/lib/curl_threads.h"
@@ -37,13 +37,7 @@
 #  define curl_mutex_t           CRITICAL_SECTION
 #  define curl_thread_t          HANDLE
 #  define curl_thread_t_null     (HANDLE)0
-#  if !defined(_WIN32_WINNT) || !defined(_WIN32_WINNT_VISTA) || \
-      (_WIN32_WINNT < _WIN32_WINNT_VISTA) || \
-      (defined(__MINGW32__) && !defined(__MINGW64_VERSION_MAJOR))
-#    define Curl_mutex_init(m)   InitializeCriticalSection(m)
-#  else
-#    define Curl_mutex_init(m)   InitializeCriticalSectionEx(m, 0, 1)
-#  endif
+#  define Curl_mutex_init(m)     InitializeCriticalSection(m)
 #  define Curl_mutex_acquire(m)  EnterCriticalSection(m)
 #  define Curl_mutex_release(m)  LeaveCriticalSection(m)
 #  define Curl_mutex_destroy(m)  DeleteCriticalSection(m)