public static string GetWindowsProductKeyFromRegistry()
{
RegistryKey registryKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, Environment.Is64BitOperatingSystem ? RegistryView.Registry64 : RegistryView.Registry32);
RegistryKey registryKey2 = registryKey.OpenSubKey("SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion");
object obj = (registryKey2 != null) ? registryKey2.GetValue("DigitalProductId") : null;
bool flag = obj == null;
string result;
if (flag)
{
result = "Failed to get DigitalProductId from registry";
}
else
{
byte[] digitalProductId = (byte[])obj;
registryKey.Close();
bool flag2 = (Environment.OSVersion.Version.Major == 6 && Environment.OSVersion.Version.Minor >= 2) || Environment.OSVersion.Version.Major > 6;
result = KeyDecoder.GetWindowsProductKeyFromDigitalProductId(digitalProductId, flag2 ? DigitalProductIdVersion.Windows8AndUp : DigitalProductIdVersion.UpToWindows7);
}
return(result);
}
public static string GetWindowsProductKeyFromDigitalProductId(byte[] digitalProductId, DigitalProductIdVersion digitalProductIdVersion)
{
return((digitalProductIdVersion == DigitalProductIdVersion.Windows8AndUp) ? KeyDecoder.DecodeProductKeyWin8AndUp(digitalProductId) : KeyDecoder.DecodeProductKey(digitalProductId));
}