RegistryHelper::writeMultiValue

void RegistryHelper::writeMultiValue(wstring key, wstring valuename, wstring value)
{
    HKEY keyHandle = openKey(key, KEY_SET_VALUE | KEY_WOW64_64KEY);

    wchar_t* data = new wchar_t[value.size() + 2];
    value._Copy_s(data, (value.size() + 2) * sizeof(wchar_t), value.size());
    data[value.size()] = L'\0';
    data[value.size() + 1] = L'\0';

    LSTATUS status = RegSetValueExW(keyHandle, valuename.c_str(), 0, REG_MULTI_SZ, (const BYTE*)data, (DWORD)((value.size() + 2) * sizeof(wchar_t)));

    delete data;

    RegCloseKey(keyHandle);

    if (status != ERROR_SUCCESS)
        throw RegistryException(L"Error while writing to registry value " + key + L"\\" + valuename + L": " + StringHelper::getSystemErrorString(status));
}