My Toolbar or BHO is Causing IE7 on Vista to Crash on Close. Help!
; https://docs.microsoft.com/en-us/archive/blogs/tonyschr/my-toolbar-or-bho-is-causing-ie7-on-vista-to-crash-on-close-help

#include "stdafx.h"
#include <windows.h>
#include <objbase.h>
#include <objidl.h>

#pragma comment(lib, "ole32.lib")

class CInitializeSpy : public IInitializeSpy
{
public:
	CInitializeSpy()
	{
		dwCount = 0;
	}

	STDMETHOD(PreInitialize)(DWORD dwCoInit,DWORD dwCurThreadAptRefs)
	{
		::OutputDebugStr(L"PreInitialize\r\n");
		return S_OK;
	}

	STDMETHOD(PostInitialize)(HRESULT hrCoInit,DWORD dwCoInit,DWORD dwNewThreadAptRefs)
	{
		::OutputDebugStr(L"PostInitialize\r\n");
		return S_OK;
	}

	STDMETHOD(PreUninitialize)(DWORD dwCurThreadAptRefs)
	{
		::OutputDebugStr(L"PreUninitialize\r\n");
		return S_OK;
	}

	STDMETHOD(PostUninitialize)(DWORD dwNewThreadAptRefs)
	{
		::OutputDebugStr(L"PostUninitialize\r\n");
		return S_OK;
	}

	STDMETHOD(QueryInterface)(REFIID riid, void **ppvObject)
	{
		bool qied = false;

		if ( riid == IID_IUnknown)
		{
			*ppvObject = this;
			qied = true;
		}

		if ( riid == IID_IInitializeSpy)
		{
			*ppvObject = this;
			qied = true;
		}

		if ( qied == true )
		{
			dwCount ++;
			return S_OK;
		}

		return E_NOINTERFACE;
	}

	virtual ULONG STDMETHODCALLTYPE AddRef( void)
	{
		dwCount ++;
		return dwCount;
	}

	virtual ULONG STDMETHODCALLTYPE Release( void)
	{
		dwCount --;

		if ( dwCount == 0 )
		{
			delete this;
		}

		return dwCount;
	}

	DWORD dwCount;
};

int _tmain(int argc, _TCHAR* argv[])
{
	CInitializeSpy *pSpy = new CInitializeSpy();
	ULARGE_INTEGER ulCookie;

	CoRegisterInitializeSpy(pSpy, &ulCookie);

	CoInitialize(NULL);
	CoUninitialize();

	CoRevokeInitializeSpy(ulCookie);
	return 0;
}