diff --git a/Assets/uDesktopDuplication/Examples/Scripts/MultipleMonitorCreator.cs b/Assets/uDesktopDuplication/Examples/Scripts/MultipleMonitorCreator.cs
index 72f4438..9a3bba5 100644
--- a/Assets/uDesktopDuplication/Examples/Scripts/MultipleMonitorCreator.cs
+++ b/Assets/uDesktopDuplication/Examples/Scripts/MultipleMonitorCreator.cs
@@ -69,8 +69,6 @@ public class MultipleMonitorCreator : MonoBehaviour
     {
         ResetRemoveTimer();
 
-        Debug.Log(uDesktopDuplication.Manager.monitorCount);
-
         // Create monitors
         for (int i = 0; i < uDesktopDuplication.Manager.monitorCount; ++i) {
             // Create monitor obeject
diff --git a/Assets/uDesktopDuplication/Plugins/x86_64/uDesktopDuplication.dll b/Assets/uDesktopDuplication/Plugins/x86_64/uDesktopDuplication.dll
index bae1631..4075b35 100644
Binary files a/Assets/uDesktopDuplication/Plugins/x86_64/uDesktopDuplication.dll and b/Assets/uDesktopDuplication/Plugins/x86_64/uDesktopDuplication.dll differ
diff --git a/Plugins/uDesktopDuplication/uDesktopDuplication/Common.h b/Plugins/uDesktopDuplication/uDesktopDuplication/Common.h
index e193cb8..5ee43e7 100644
--- a/Plugins/uDesktopDuplication/uDesktopDuplication/Common.h
+++ b/Plugins/uDesktopDuplication/uDesktopDuplication/Common.h
@@ -13,18 +13,6 @@ struct ID3D11Device;
 ID3D11Device* GetDevice();
 
 
-// Utility
-template <class T>
-auto MakeUniqueWithReleaser(T* ptr)
-{
-    const auto deleter = [](T* ptr) 
-    { 
-        if (ptr != nullptr) ptr->Release();
-    };
-    return std::unique_ptr<T, decltype(deleter)>(ptr, deleter);
-}
-
-
 // Manager getter
 class MonitorManager;
 const std::unique_ptr<MonitorManager>& GetMonitorManager();
diff --git a/Plugins/uDesktopDuplication/uDesktopDuplication/Cursor.cpp b/Plugins/uDesktopDuplication/uDesktopDuplication/Cursor.cpp
index 6c60b02..e02520c 100644
--- a/Plugins/uDesktopDuplication/uDesktopDuplication/Cursor.cpp
+++ b/Plugins/uDesktopDuplication/uDesktopDuplication/Cursor.cpp
@@ -1,10 +1,13 @@
 #include <d3d11.h>
+#include <wrl/client.h>
 #include "Common.h"
 #include "Debug.h"
 #include "MonitorManager.h"
 #include "Monitor.h"
 #include "Cursor.h"
 
+using namespace Microsoft::WRL;
+
 
 Cursor::Cursor(Monitor* monitor)
     : monitor_(monitor)
@@ -149,9 +152,8 @@ void Cursor::UpdateTexture()
         desc.CPUAccessFlags = D3D11_CPU_ACCESS_READ;
         desc.MiscFlags = 0;
 
-        ID3D11Texture2D* texture = nullptr;
+        ComPtr<ID3D11Texture2D> texture;
         hr = GetDevice()->CreateTexture2D(&desc, nullptr, &texture);
-        const auto textureReleaser = MakeUniqueWithReleaser(texture);
         if (FAILED(hr)) 
         {
             Debug::Error("Cursor::UpdateTexture() => GetDevice()->CreateTexture2D() failed.");
@@ -172,14 +174,14 @@ void Cursor::UpdateTexture()
             return;
         }
 
-        ID3D11DeviceContext* context;
-        GetDevice()->GetImmediateContext(&context);
-        context->CopySubresourceRegion(texture, 0, 0, 0, 0, monitor_->GetUnityTexture(), 0, &box);
-        context->Release();
+        {
+            ComPtr<ID3D11DeviceContext> context;
+            GetDevice()->GetImmediateContext(&context);
+            context->CopySubresourceRegion(texture.Get(), 0, 0, 0, 0, monitor_->GetUnityTexture(), 0, &box);
+        }
 
-        IDXGISurface* surface = nullptr;
-        hr = texture->QueryInterface(__uuidof(IDXGISurface), (void**)&surface);
-        const auto surfaceReleaser = MakeUniqueWithReleaser(surface);
+        ComPtr<IDXGISurface> surface;
+        hr = texture.As<IDXGISurface>(&surface);
         if (FAILED(hr))
         {
             Debug::Error("Cursor::UpdateTexture() => texture->QueryInterface() failed.");
@@ -286,10 +288,9 @@ void Cursor::GetTexture(ID3D11Texture2D* texture)
         return;
     }
 
-    ID3D11DeviceContext* context;
+    ComPtr<ID3D11DeviceContext> context;
     GetDevice()->GetImmediateContext(&context);
     context->UpdateSubresource(texture, 0, nullptr, bgra32Buffer_.get(), GetWidth() * 4, 0);
-    context->Release();
 }
 
 
diff --git a/Plugins/uDesktopDuplication/uDesktopDuplication/Monitor.cpp b/Plugins/uDesktopDuplication/uDesktopDuplication/Monitor.cpp
index 0875412..12577b1 100644
--- a/Plugins/uDesktopDuplication/uDesktopDuplication/Monitor.cpp
+++ b/Plugins/uDesktopDuplication/uDesktopDuplication/Monitor.cpp
@@ -6,6 +6,8 @@
 #include "MonitorManager.h"
 #include "Monitor.h"
 
+using namespace Microsoft::WRL;
+
 
 Monitor::Monitor(int id)
     : id_(id)
@@ -28,17 +30,14 @@ void Monitor::Initialize(IDXGIOutput* output)
     GetDpiForMonitor(outputDesc_.Monitor, MDT_RAW_DPI, &dpiX_, &dpiY_);
 
     auto output1 = reinterpret_cast<IDXGIOutput1*>(output);
-    IDXGIOutputDuplication* deskDupl;
-    const auto hr = output1->DuplicateOutput(GetDevice(), &deskDupl);
+    const auto hr = output1->DuplicateOutput(GetDevice(), &deskDupl_);
 
     // TODO: error check
     switch (hr)
     {
         case S_OK:
             state_ = State::Available;
-            deskDupl_ = std::shared_ptr<IDXGIOutputDuplication>(
-                deskDupl,
-                [](IDXGIOutputDuplication* ptr) { if (ptr != nullptr) ptr->Release(); });
+            Debug::Log("Monitor::Initialize() => OK.");
             break;
         case E_INVALIDARG:
             state_ = State::InvalidArg;
@@ -73,12 +72,11 @@ void Monitor::Render(UINT timeout)
 {
     if (!deskDupl_) return;
 
-    IDXGIResource* resource = nullptr;
+    ComPtr<IDXGIResource> resource;
     DXGI_OUTDUPL_FRAME_INFO frameInfo;
     HRESULT hr;
 
     hr = deskDupl_->AcquireNextFrame(timeout, &frameInfo, &resource);
-    const auto resourceReleaser = MakeUniqueWithReleaser(resource);
     if (FAILED(hr))
     {
         switch (hr)
@@ -107,13 +105,12 @@ void Monitor::Render(UINT timeout)
 
     if (unityTexture_)
     {
-        ID3D11Texture2D* texture;
-        resource->QueryInterface(__uuidof(ID3D11Texture2D), reinterpret_cast<void**>(&texture));
+        ComPtr<ID3D11Texture2D> texture;
+        resource.As<ID3D11Texture2D>(&texture);
 
-        ID3D11DeviceContext* context;
+        ComPtr<ID3D11DeviceContext> context;
         GetDevice()->GetImmediateContext(&context);
-        context->CopyResource(unityTexture_, texture);
-        context->Release();
+        context->CopyResource(unityTexture_, texture.Get());
     }
 
     cursor_->UpdateBuffer(frameInfo);
@@ -151,7 +148,7 @@ ID3D11Texture2D* Monitor::GetUnityTexture() const
 }
 
 
-const std::shared_ptr<IDXGIOutputDuplication>& Monitor::GetDeskDupl() 
+const ComPtr<IDXGIOutputDuplication>& Monitor::GetDeskDupl() 
 { 
     return deskDupl_; 
 }
diff --git a/Plugins/uDesktopDuplication/uDesktopDuplication/Monitor.h b/Plugins/uDesktopDuplication/uDesktopDuplication/Monitor.h
index 39a67d0..dff70ff 100644
--- a/Plugins/uDesktopDuplication/uDesktopDuplication/Monitor.h
+++ b/Plugins/uDesktopDuplication/uDesktopDuplication/Monitor.h
@@ -2,6 +2,7 @@
 
 #include <d3d11.h>
 #include <dxgi1_2.h>
+#include <wrl/client.h>
 #include <memory>
 
 class Cursor;
@@ -45,7 +46,7 @@ public:
     int GetRotation() const;
     int GetDpiX() const;
     int GetDpiY() const;
-    const std::shared_ptr<IDXGIOutputDuplication>& GetDeskDupl();
+    const Microsoft::WRL::ComPtr<IDXGIOutputDuplication>& GetDeskDupl();
     const std::unique_ptr<Cursor>& GetCursor();
 
 private:
@@ -53,7 +54,7 @@ private:
     UINT dpiX_ = -1, dpiY_ = -1;
     State state_ = State::NotSet;
     std::unique_ptr<Cursor> cursor_;
-    std::shared_ptr<IDXGIOutputDuplication> deskDupl_;
+    Microsoft::WRL::ComPtr<IDXGIOutputDuplication> deskDupl_;
     ID3D11Texture2D* unityTexture_ = nullptr;
     DXGI_OUTPUT_DESC outputDesc_;
     MONITORINFOEX monitorInfo_;
diff --git a/Plugins/uDesktopDuplication/uDesktopDuplication/MonitorManager.cpp b/Plugins/uDesktopDuplication/uDesktopDuplication/MonitorManager.cpp
index 0877fbd..960205c 100644
--- a/Plugins/uDesktopDuplication/uDesktopDuplication/MonitorManager.cpp
+++ b/Plugins/uDesktopDuplication/uDesktopDuplication/MonitorManager.cpp
@@ -1,5 +1,6 @@
 #include <d3d11.h>
 #include <dxgi1_2.h>
+#include <wrl/client.h>
 #include <vector>
 #include <string>
 #include <algorithm>
@@ -12,6 +13,8 @@
 #include "Cursor.h"
 #include "MonitorManager.h"
 
+using namespace Microsoft::WRL;
+
 
 MonitorManager::MonitorManager()
 {
@@ -30,23 +33,20 @@ void MonitorManager::Initialize()
     Finalize();
 
     // Get factory
-    IDXGIFactory1* factory;
-    CreateDXGIFactory1(__uuidof(IDXGIFactory1), reinterpret_cast<void**>(&factory));
-    const auto factoryReleaser = MakeUniqueWithReleaser(factory);
+    ComPtr<IDXGIFactory1> factory;
+    CreateDXGIFactory1(IID_PPV_ARGS(&factory));
 
     // Check all display adapters
     int id = 0;
-    IDXGIAdapter1* adapter;
+    ComPtr<IDXGIAdapter1> adapter;
     for (int i = 0; (factory->EnumAdapters1(i, &adapter) != DXGI_ERROR_NOT_FOUND); ++i) 
     {
-        const auto adapterReleaser = MakeUniqueWithReleaser(adapter);
         // Search the main monitor from all outputs
-        IDXGIOutput* output;
+        ComPtr<IDXGIOutput> output;
         for (int j = 0; (adapter->EnumOutputs(j, &output) != DXGI_ERROR_NOT_FOUND); ++j) 
         {
-            const auto outputReleaser = MakeUniqueWithReleaser(output);
             auto monitor = std::make_shared<Monitor>(id++);
-            monitor->Initialize(output);
+            monitor->Initialize(output.Get());
             monitors_.push_back(monitor);
         }
     }