diff --git a/CMakeLists.txt b/CMakeLists.txt
index dfc13b7..e482540 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,6 +4,7 @@ project(wepoll)
 include(CMakeParseArguments)
 
 link_libraries(ws2_32)
+link_libraries(synchronization)
 
 if(MSVC)
   add_compile_options(/Wall /WX /wd4127 /wd4201 /wd4242 /wd4710 /wd4711 /wd4820)
diff --git a/src/init.c b/src/init.c
index 04f72bc..78b3aab 100644
--- a/src/init.c
+++ b/src/init.c
@@ -21,7 +21,7 @@ static BOOL CALLBACK init__once_callback(INIT_ONCE* once,
 
   /* N.b. that initialization order matters here. */
   if (ws_global_init() < 0 || nt_global_init() < 0 ||
-      reflock_global_init() < 0 || epoll_global_init() < 0)
+      epoll_global_init() < 0)
     return FALSE;
 
   init__done = true;
diff --git a/src/nt.h b/src/nt.h
index 4e66548..caf4865 100644
--- a/src/nt.h
+++ b/src/nt.h
@@ -63,11 +63,6 @@ typedef struct _OBJECT_ATTRIBUTES {
 #define FILE_OPEN 0x00000001UL
 #endif
 
-#define KEYEDEVENT_WAIT 0x00000001UL
-#define KEYEDEVENT_WAKE 0x00000002UL
-#define KEYEDEVENT_ALL_ACCESS \
-  (STANDARD_RIGHTS_REQUIRED | KEYEDEVENT_WAIT | KEYEDEVENT_WAKE)
-
 #define NT_NTDLL_IMPORT_LIST(X)           \
   X(NTSTATUS,                             \
     NTAPI,                                \
@@ -91,14 +86,6 @@ typedef struct _OBJECT_ATTRIBUTES {
      PVOID EaBuffer,                      \
      ULONG EaLength))                     \
                                           \
-  X(NTSTATUS,                             \
-    NTAPI,                                \
-    NtCreateKeyedEvent,                   \
-    (PHANDLE KeyedEventHandle,            \
-     ACCESS_MASK DesiredAccess,           \
-     POBJECT_ATTRIBUTES ObjectAttributes, \
-     ULONG Flags))                        \
-                                          \
   X(NTSTATUS,                             \
     NTAPI,                                \
     NtDeviceIoControlFile,                \
@@ -113,22 +100,6 @@ typedef struct _OBJECT_ATTRIBUTES {
      PVOID OutputBuffer,                  \
      ULONG OutputBufferLength))           \
                                           \
-  X(NTSTATUS,                             \
-    NTAPI,                                \
-    NtReleaseKeyedEvent,                  \
-    (HANDLE KeyedEventHandle,             \
-     PVOID KeyValue,                      \
-     BOOLEAN Alertable,                   \
-     PLARGE_INTEGER Timeout))             \
-                                          \
-  X(NTSTATUS,                             \
-    NTAPI,                                \
-    NtWaitForKeyedEvent,                  \
-    (HANDLE KeyedEventHandle,             \
-     PVOID KeyValue,                      \
-     BOOLEAN Alertable,                   \
-     PLARGE_INTEGER Timeout))             \
-                                          \
   X(ULONG, WINAPI, RtlNtStatusToDosError, (NTSTATUS Status))
 
 #define X(return_type, attributes, name, parameters) \
diff --git a/src/reflock.c b/src/reflock.c
index 60a96b5..76af8bb 100644
--- a/src/reflock.c
+++ b/src/reflock.c
@@ -15,31 +15,17 @@
 #define REFLOCK__POISON       ((long) 0x300dead0UL)
 /* clang-format on */
 
-static HANDLE reflock__keyed_event = NULL;
-
-int reflock_global_init(void) {
-  NTSTATUS status = NtCreateKeyedEvent(
-      &reflock__keyed_event, KEYEDEVENT_ALL_ACCESS, NULL, 0);
-  if (status != STATUS_SUCCESS)
-    return_set_error(-1, RtlNtStatusToDosError(status));
-  return 0;
-}
-
 void reflock_init(reflock_t* reflock) {
   reflock->state = 0;
 }
 
 static void reflock__signal_event(void* address) {
-  NTSTATUS status =
-      NtReleaseKeyedEvent(reflock__keyed_event, address, FALSE, NULL);
-  if (status != STATUS_SUCCESS)
-    abort();
+  WakeByAddressSingle(address);
 }
 
 static void reflock__await_event(void* address) {
-  NTSTATUS status =
-      NtWaitForKeyedEvent(reflock__keyed_event, address, FALSE, NULL);
-  if (status != STATUS_SUCCESS)
+  BOOL status = WaitOnAddress(address, address, sizeof(void*), INFINITE);
+  if (status != TRUE)
     abort();
 }
 
diff --git a/src/reflock.h b/src/reflock.h
index 7f6d5a6..a3d276e 100644
--- a/src/reflock.h
+++ b/src/reflock.h
@@ -25,8 +25,6 @@ typedef struct reflock {
   volatile long state; /* 32-bit Interlocked APIs operate on `long` values. */
 } reflock_t;
 
-WEPOLL_INTERNAL int reflock_global_init(void);
-
 WEPOLL_INTERNAL void reflock_init(reflock_t* reflock);
 WEPOLL_INTERNAL void reflock_ref(reflock_t* reflock);
 WEPOLL_INTERNAL void reflock_unref(reflock_t* reflock);