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Wierd OLE32 Access voilation, please help!

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Hi! I have been coding sound core for many hours, and at the end i am getting access voilations, please see the following code:
bool cSoundCore::Init( HWND hWnd )
        // This mad func causes error.

	CoCreateInstance(CLSID_DirectMusicLoader, NULL, 
		CLSCTX_INPROC, IID_IDirectMusicLoader8,

	CoCreateInstance(CLSID_DirectMusicPerformance, NULL,
		CLSCTX_INPROC, IID_IDirectMusicPerformance8,
		(void**)&mpDMPerformance );

	// Initialize DirectMusic and DirectSound

	mpDMPerformance->InitAudio(	NULL, NULL, hWnd, 

	// Set search directory as current directory

	char szSearchPath[MAX_PATH];


	return true;
now i have tried every thing, i have checked MS docs they all do like this, i even copied & pasted their code, but still the same error, i think OLE32 is COM thing, & i may have been doing something wrong with COM please tell me whats wrong here!

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