RegistryHelper::writeDWORDValue

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

    LSTATUS status = RegSetValueExW(keyHandle, valuename.c_str(), 0, REG_DWORD, (const BYTE*)&value, sizeof(unsigned long));

    RegCloseKey(keyHandle);

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