Открываем очередь сообщений.
BOOL CMQMsgDlg::OpenQueue
  ( LPCTSTR szQueueName,QUEUEHANDLE*	hQueue,DWORD dwAccess,DWORD dwShareMode )
{
	DWORD		dwFormatNameLength = 0;
	BOOL			bRet				= FALSE;
	WCHAR*		wszFormatName;
	WCHAR*		wszName;
	HRESULT		hRes;

	if( AnsiToUnicode( szQueueName,&wszName ) )
	{
		if( (hRes = MQPathNameToFormatName
			( wszName,NULL,&dwFormatNameLength )) == 
				MQ_ERROR_FORMATNAME_BUFFER_
					TOO_SMALL )
		{
			wszFormatName = new WCHAR[dwFormatNameLength + sizeof(WCHAR)]; 
			if( wszFormatName != NULL )
			{
				memset
					( wszFormatName,0,dwFormatNameLength 
						+ sizeof(WCHAR) );
				if( MQPathNameToFormatName
					( wszName,wszFormatName,
						&dwFormatNameLength ) == MQ_OK )
				{
					if( MQOpenQueue
						( wszFormatName,dwAccess,
						dwShareMode,hQueue ) == MQ_OK )
						bRet = TRUE;
				}
				delete wszFormatName;
			}
		}
		delete wszName;
	}
	return bRet;
}