diff --git a/build/platform-msvc-arm.mk b/build/platform-msvc-arm.mk
index 4ea6fc93..b0cec945 100644
--- a/build/platform-msvc-arm.mk
+++ b/build/platform-msvc-arm.mk
@@ -2,6 +2,7 @@ include build/platform-msvc-common.mk
 ARCH=arm
 include build/platform-arch.mk
 CFLAGS += -DWINAPI_FAMILY=WINAPI_FAMILY_PHONE_APP -MD -DWIN32
+CXXFLAGS += -ZW
 LDFLAGS +=
 CCAS = gas-preprocessor.pl -as-type armasm -force-thumb -- armasm
 
diff --git a/codec/common/src/WelsThreadLib.cpp b/codec/common/src/WelsThreadLib.cpp
index 8dcd0469..f7dc43a4 100644
--- a/codec/common/src/WelsThreadLib.cpp
+++ b/codec/common/src/WelsThreadLib.cpp
@@ -68,6 +68,11 @@
 
 #ifdef WINAPI_FAMILY
 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
+using namespace Platform;
+using namespace Windows::Foundation;
+using namespace Windows::System::Threading;
+#define USE_THREADPOOL
+
 #define InitializeCriticalSection(x) InitializeCriticalSectionEx(x, 0, 0)
 #define GetSystemInfo(x) GetNativeSystemInfo(x)
 #define CreateEvent(attr, reset, init, name) CreateEventEx(attr, name, ((reset) ? CREATE_EVENT_MANUAL_RESET : 0) | ((init) ? CREATE_EVENT_INITIAL_SET : 0), EVENT_ALL_ACCESS)
@@ -169,7 +174,18 @@ WELS_THREAD_ERROR_CODE    WelsEventClose (WELS_EVENT* event, const char* event_n
 
 WELS_THREAD_ERROR_CODE    WelsThreadCreate (WELS_THREAD_HANDLE* thread,  LPWELS_THREAD_ROUTINE  routine,
     void* arg, WELS_THREAD_ATTR attr) {
+#ifdef USE_THREADPOOL
+  HANDLE h = CreateEvent(NULL, FALSE, FALSE, NULL);
+  HANDLE h2;
+  DuplicateHandle(GetCurrentProcess(), h, GetCurrentProcess(), &h2, 0, FALSE, DUPLICATE_SAME_ACCESS);
+  ThreadPool::RunAsync(ref new WorkItemHandler([=](IAsyncAction^) {
+    routine(arg);
+    SetEvent(h2);
+    CloseHandle(h2);
+  }, CallbackContext::Any), WorkItemPriority::Normal, WorkItemOptions::TimeSliced);
+#else
   WELS_THREAD_HANDLE   h = CreateThread (NULL, 0, routine, arg, 0, NULL);
+#endif
 
   if (h == NULL) {
     return WELS_THREAD_ERROR_GENERAL;