ANGLE closes COM incorrectly

bug.patch

diff --git a/samples/gles1/HelloTriangle.cpp b/samples/gles1/HelloTriangle.cpp
index 0220b9678..2896ec547 100644
--- a/samples/gles1/HelloTriangle.cpp
+++ b/samples/gles1/HelloTriangle.cpp
@@ -13,6 +13,8 @@
 // URLs:      http://safari.informit.com/9780321563835
 //            http://www.opengles-book.com
 
+#include <objbase.h>
+
 #include "SampleApplication.h"
 #include "util/shader_utils.h"
 
@@ -50,6 +52,8 @@ class GLES1HelloTriangleSample : public SampleApplication
 
 int main(int argc, char **argv)
 {
+    ::CoInitializeEx(nullptr, COINIT_APARTMENTTHREADED);
+
     GLES1HelloTriangleSample app(argc, argv);
     return app.run();
 }
diff --git a/samples/sample_util/SampleApplication.cpp b/samples/sample_util/SampleApplication.cpp
index b583366e3..cacc207e0 100644
--- a/samples/sample_util/SampleApplication.cpp
+++ b/samples/sample_util/SampleApplication.cpp
@@ -14,7 +14,10 @@
 #include "util/test_utils.h"
 #include "util/util_gl.h"
 
+#include <objbase.h>
 #include <string.h>
+#include <uiautomation.h>
+#include <wrl/implements.h>
 #include <iostream>
 #include <utility>
 
@@ -244,7 +247,9 @@ int SampleApplication::run()
         return -1;
     }
 
-    mOSWindow->setVisible(true);
+    // Making the window visible does another COM initialization.
+    // This hides the fact that ANGLE is incorrectly closing COM.
+    // mOSWindow->setVisible(true);
 
     ConfigParameters configParams;
     configParams.redBits     = 8;
@@ -260,6 +265,19 @@ int SampleApplication::run()
         return -1;
     }
 
+    // Creating this COM instance fails if line 253 is commented.
+    // This is because ANGLE's RoHelper has incorrectly closed COM.
+    Microsoft::WRL::ComPtr<IUIAutomationRegistrar> registrar;
+    if (FAILED(CoCreateInstance(CLSID_CUIAutomationRegistrar, nullptr, CLSCTX_INPROC_SERVER,
+                                IID_IUIAutomationRegistrar, &registrar)))
+    {
+        std::cout << "BUG: Creating the COM instance failed!" << std::endl;
+    }
+    else
+    {
+        std::cout << "Success!" << std::endl;
+    }
+
     // Disable vsync
     if (!mGLWindow->setSwapInterval(0))
     {