diff --git a/src/Vulkan/main.cpp b/src/Vulkan/main.cpp
new file mode 100644
index 0000000..cdcbf39
--- /dev/null
+++ b/src/Vulkan/main.cpp
@@ -0,0 +1,78 @@
+// Copyright 2018 The SwiftShader Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// main.cpp: DLL entry point.
+
+#include "resource.h"
+#include <windows.h>
+
+#if defined(_WIN32)
+#ifdef DEBUGGER_WAIT_DIALOG
+static INT_PTR CALLBACK DebuggerWaitDialogProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
+{
+	RECT rect;
+
+	switch(uMsg)
+	{
+	case WM_INITDIALOG:
+		GetWindowRect(GetDesktopWindow(), &rect);
+		SetWindowPos(hwnd, HWND_TOP, rect.right / 2, rect.bottom / 2, 0, 0, SWP_NOSIZE);
+		SetTimer(hwnd, 1, 100, NULL);
+		return TRUE;
+	case WM_COMMAND:
+		if(LOWORD(wParam) == IDCANCEL)
+		{
+			EndDialog(hwnd, 0);
+		}
+		break;
+	case WM_TIMER:
+		if(IsDebuggerPresent())
+		{
+			EndDialog(hwnd, 0);
+		}
+	}
+
+	return FALSE;
+}
+
+static void WaitForDebugger(HINSTANCE instance)
+{
+	if(!IsDebuggerPresent())
+	{
+		HRSRC dialog = FindResource(instance, MAKEINTRESOURCE(IDD_DIALOG1), RT_DIALOG);
+		DLGTEMPLATE *dialogTemplate = (DLGTEMPLATE*)LoadResource(instance, dialog);
+		DialogBoxIndirect(instance, dialogTemplate, NULL, DebuggerWaitDialogProc);
+	}
+}
+#endif
+
+extern "C" BOOL WINAPI DllMain(HINSTANCE instance, DWORD reason, LPVOID reserved)
+{
+	switch(reason)
+	{
+	case DLL_PROCESS_ATTACH:
+#ifdef DEBUGGER_WAIT_DIALOG
+		WaitForDebugger(instance);
+#endif
+		break;
+	case DLL_THREAD_ATTACH:
+	case DLL_THREAD_DETACH:
+	case DLL_PROCESS_DETACH:
+	default:
+		break;
+	}
+
+	return TRUE;
+}
+#endif
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