bool GetWindowsVersionName(std::string* out)
{
	if (!out) return false;

	*out = "Microsoft ";

	BYTE dwType = GetProductType();
	DWORD dwSubType = 0;

	SYSTEM_INFO si;
	ZeroMemory(&si, sizeof(SYSTEM_INFO));
	GetNativeSystemInfo(&si);

	if (EqualsMajorVersion(6) && EqualsMinorVersion(3))
	{
		MyGetProductInfo(6, 3, 0, 0, &dwSubType);

		if (dwType == VER_NT_WORKSTATION)
		{
			out->append("Windows 8.1");
			if (dwSubType == PRODUCT_PROFESSIONAL)
				out->append(" Pro");
		}
		else if (dwType == VER_NT_SERVER)
		{
			out->append("Windows Server 2012 R2");
		}
	}
	else if (EqualsMajorVersion(6) && EqualsMinorVersion(2))
	{
		MyGetProductInfo(6, 2, 0, 0, &dwSubType);

		if (dwType == VER_NT_WORKSTATION)
		{
			out->append("Windows 8");
			if (dwSubType == PRODUCT_PROFESSIONAL)
				out->append(" Pro");
		}
		else if (dwType == VER_NT_SERVER)
		{
			out->append("Windows Server 2012");
		}
	}
	else // older than Windows 8 use GetVersionExA
	{
		OSVERSIONINFOEX osvi;
		ZeroMemory(&osvi, sizeof(OSVERSIONINFOEXA));
		osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEXA);
		MyGetVersionExA(&osvi);

		if (osvi.dwMajorVersion == 6 && osvi.dwMinorVersion == 1)
		{
			MyGetProductInfo(6, 1, 0, 0, &dwSubType);

			if (dwType == VER_NT_WORKSTATION)
				out->append("Windows 7");
			else out->append("Windows Server 2008 R2");

			switch (dwSubType)
			{
				case PRODUCT_ULTIMATE:
					out->append(" Ultimate Edition");
					break;
				case PRODUCT_PROFESSIONAL:
					out->append(" Professional");
					break;
				case PRODUCT_HOME_PREMIUM:
					out->append(" Home Premium Edition");
					break;
				case PRODUCT_HOME_BASIC:
					out->append(" Home Basic Edition");
					break;
				case PRODUCT_ENTERPRISE:
					out->append(" Enterprise Edition");
					break;
				case PRODUCT_BUSINESS:
					out->append(" Business Edition");
					break;
				case PRODUCT_STARTER:
					out->append(" Starter Edition");
					break;
			}
		}
		else if (osvi.dwMajorVersion == 6 && osvi.dwMinorVersion == 0)
		{
			if (dwType == VER_NT_WORKSTATION)
				out->append("Windows Vista");
			else out->append("Windows Server 2008");
		}
		else if (osvi.dwMajorVersion == 5 && osvi.dwMinorVersion == 2)
		{

			if (GetSystemMetrics(SM_SERVERR2))
				out->append("Windows Server 2003 R2");
			else if (osvi.wSuiteMask & VER_SUITE_STORAGE_SERVER)
				out->append("Windows Storage Server 2003");
			else if (osvi.wSuiteMask & VER_SUITE_WH_SERVER)
				out->append("Windows Home Server");
			else if (osvi.wProductType == VER_NT_WORKSTATION &&
				si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64)
			{
				out->append("Windows XP Professional x64 Edition");
			}
			else out->append("Windows Server 2003 ");
		}
		else if (osvi.dwMajorVersion == 5 && osvi.dwMinorVersion == 1)
		{
			out->append("Windows XP");
			if (osvi.wSuiteMask & VER_SUITE_PERSONAL)
				out->append(" Home Edition");
			else out->append(" Professional");
		}

	}
	if (EqualsMajorVersion(6))
	{
		if (si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64)
			out->append(" (x64)");
		else if (si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_INTEL)
			out->append(" (x86)");
	}

	return true;
}