MFC common current path

CString MyGetCurrentDirectory()
{
	char chBuf[0x8000] = { 0 };
	DWORD dwSize = GetEnvironmentVariable("path", chBuf, 0x10000);
	if (dwSize == 0)
	{
		logger.INFO_F(FUN_LINE": GetEnvironmentVariable() fail....");
		return 0;
	}
	logger.INFO_F(FUN_LINE": GetEnvironmentVariable() chBuf is: " + chBuf);

	CString strEnvPaths(chBuf);

	// find current path
	if (!GetModuleFileName(NULL, chBuf, MAX_PATH)) // Software full path 
	{
		logger.INFO_F(FUN_LINE": GetModuleFileName() fail....");
		return 0;
	}
	logger.INFO_F(FUN_LINE": GetModuleFileName() chBuf is: " + chBuf);

	CString strAppPath(chBuf);
	const int nPos = strAppPath.ReverseFind(_T('\\'));
	if (nPos > 0)
	{
		// add path backslash
		strAppPath = strAppPath.Mid(0, nPos + 1);  // current path 
	}
	//des += "config.ini";
	
	system("cd "+strAppPath); // And switch to the current path 
	return strAppPath;

	//CString des = "";
	//::GetCurrentDirectory(MAX_PATHLENGTH, des.GetBuffer(MAX_PATHLENGTH));
	//des.ReleaseBuffer();
	//des += "\\config.ini";
	//return des;
}