diff --git a/lib/win/ApplicationWin32.cpp b/lib/win/ApplicationWin32.cpp
index 06e6f40..0c4f3c1 100644
--- a/lib/win/ApplicationWin32.cpp
+++ b/lib/win/ApplicationWin32.cpp
@@ -292,7 +292,7 @@ public:
         int clientReturn = 0;
         std::thread clientThread([&]()
         {
-            CoInitializeEx(nullptr, COINIT_MULTITHREADED);
+            CoInitializeEx(nullptr, COINIT_MULTITHREADED | COINIT_DISABLE_OLE1DDE);
             clientReturn = m_callback.appMain(this);
             PostThreadMessage(g_mainThreadId, WM_USER+1, 0, 0);
         });