diff --git a/d3d11game_win32/Main.cpp b/d3d11game_win32/Main.cpp
index fd87f53..3681975 100644
--- a/d3d11game_win32/Main.cpp
+++ b/d3d11game_win32/Main.cpp
@@ -105,8 +105,6 @@ int WINAPI wWinMain(_In_ HINSTANCE hInstance, _In_opt_ HINSTANCE hPrevInstance,
 
     g_game.reset();
 
-    CoUninitialize();
-
     return static_cast<int>(msg.wParam);
 }
 
diff --git a/d3d11game_win32_dr/Main.cpp b/d3d11game_win32_dr/Main.cpp
index 519bd00..5560e25 100644
--- a/d3d11game_win32_dr/Main.cpp
+++ b/d3d11game_win32_dr/Main.cpp
@@ -105,8 +105,6 @@ int WINAPI wWinMain(_In_ HINSTANCE hInstance, _In_opt_ HINSTANCE hPrevInstance,
 
     g_game.reset();
 
-    CoUninitialize();
-
     return static_cast<int>(msg.wParam);
 }
 
diff --git a/d3d12game_win32/Main.cpp b/d3d12game_win32/Main.cpp
index 1e566e0..9852068 100644
--- a/d3d12game_win32/Main.cpp
+++ b/d3d12game_win32/Main.cpp
@@ -46,8 +46,7 @@ int WINAPI wWinMain(_In_ HINSTANCE hInstance, _In_opt_ HINSTANCE hPrevInstance,
     if (FAILED(CoInitializeEx(nullptr, COINITBASE_MULTITHREADED)))
         return 1;
 #else
-    Microsoft::WRL::Wrappers::RoInitializeWrapper initialize(RO_INIT_MULTITHREADED);
-    if (FAILED(initialize))
+    if (FAILED(RoInitialize(COINITBASE_MULTITHREADED)))
         return 1;
 #endif
 
diff --git a/d3d12game_win32_dr/Main.cpp b/d3d12game_win32_dr/Main.cpp
index 43da223..1aa1d68 100644
--- a/d3d12game_win32_dr/Main.cpp
+++ b/d3d12game_win32_dr/Main.cpp
@@ -46,8 +46,7 @@ int WINAPI wWinMain(_In_ HINSTANCE hInstance, _In_opt_ HINSTANCE hPrevInstance,
     if (FAILED(CoInitializeEx(nullptr, COINITBASE_MULTITHREADED)))
         return 1;
 #else
-    Microsoft::WRL::Wrappers::RoInitializeWrapper initialize(RO_INIT_MULTITHREADED);
-    if (FAILED(initialize))
+    if (FAILED(RoInitialize(COINITBASE_MULTITHREADED)))
         return 1;
 #endif