private static void AddExtraDataAES(ZipEntry entry, ZipExtraData extraData)
{
extraData.StartNewEntry();
extraData.AddLeShort(2);
extraData.AddLeShort(0x4541);
extraData.AddData(entry.AESEncryptionStrength);
extraData.AddLeShort((int)entry.CompressionMethod);
extraData.AddNewEntry(0x9901);
}