Java Security

Hi, I try to encrypt a file using this code:

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

/*
 * This file is part of the "Renoria" Game.
 * Copyright (C) 2008
 * IDGames.
 */

package renoriafileencrypter;

import java.io.InputStream;
import java.io.OutputStream;
import java.security.spec.AlgorithmParameterSpec;
import java.security.spec.InvalidKeySpecException;
import java.security.spec.KeySpec;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.crypto.Cipher;
import javax.crypto.CipherInputStream;
import javax.crypto.CipherOutputStream;
import javax.crypto.SecretKey;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.PBEKeySpec;
import javax.crypto.spec.PBEParameterSpec;

/**
 *
 * @author David
 */
public class Encrypter {
    private Cipher ecipher;
    private Cipher dcipher;
    
    // 8-byte Salt
    byte[] salt = {
        (byte)0xA9, (byte)0x9B, (byte)0xC8, (byte)0x32,
        (byte)0x56, (byte)0x35, (byte)0xE3, (byte)0x03
    };

    // Iteration count
    int iterationCount = 19;


    public Encrypter(SecretKey key) {
        AlgorithmParameterSpec paramSpec = new IvParameterSpec(iv);
        try {
            ecipher = Cipher.getInstance("DES/CBC/PKCS5Padding");
            dcipher = Cipher.getInstance("DES/CBC/PKCS5Padding");

            // CBC requires an initialization vector
            ecipher.init(Cipher.ENCRYPT_MODE, key, paramSpec);
            dcipher.init(Cipher.DECRYPT_MODE, key, paramSpec);
        } catch (java.security.InvalidAlgorithmParameterException e) {
        } catch (javax.crypto.NoSuchPaddingException e) {
        } catch (java.security.NoSuchAlgorithmException e) {
        } catch (java.security.InvalidKeyException e) {
        }
    }
    
    public Encrypter(String password) {
        try {
            KeySpec keySpec = new PBEKeySpec(password.toCharArray(), salt, iterationCount);
            SecretKey key = SecretKeyFactory.getInstance(
                "PBEWithMD5AndDES").generateSecret(keySpec);
            ecipher = Cipher.getInstance(key.getAlgorithm());
            dcipher = Cipher.getInstance(key.getAlgorithm());

            // Prepare the parameter to the ciphers
            AlgorithmParameterSpec paramSpec = new PBEParameterSpec(salt, iterationCount);

            // Create the ciphers
            ecipher.init(Cipher.ENCRYPT_MODE, key, paramSpec);
            dcipher.init(Cipher.DECRYPT_MODE, key, paramSpec);

        } catch (InvalidKeySpecException ex) {
            Logger.getLogger(Encrypter.class.getName()).log(Level.SEVERE, null, ex);
        } catch (java.security.InvalidAlgorithmParameterException e) {
            e.printStackTrace();
        } catch (javax.crypto.NoSuchPaddingException e) {
            e.printStackTrace();
        } catch (java.security.NoSuchAlgorithmException e) {
            e.printStackTrace();
        } catch (java.security.InvalidKeyException e) {
            e.printStackTrace();
        }
    }

    // Buffer used to transport the bytes from one stream to another
    byte[] buf = new byte[1024];

    public void encrypt(InputStream in, OutputStream out) {
        try {
            // Bytes written to out will be encrypted
            out = new CipherOutputStream(out, ecipher);

            // Read in the cleartext bytes and write to out to encrypt
            int numRead = 0;
            while ((numRead = in.read(buf)) >= 0) {
                out.write(buf, 0, numRead);
            }
            out.flush();
        } catch (java.io.IOException e) {
            e.printStackTrace();
        }
    }

    public void decrypt(InputStream in, OutputStream out) {
        try {
            // Bytes read from in will be decrypted
            in = new CipherInputStream(in, dcipher);

            // Read in the decrypted bytes and write the cleartext to out
            int numRead = 0;
            while ((numRead = in.read(buf)) >= 0) {
                out.write(buf, 0, numRead);
            }
            out.flush();
        } catch (java.io.IOException e) {
            e.printStackTrace();
        }
    }
}

Encryption is fine, but when I decrypt, the ZIP file can't be opened by WinZip or java.util.zip anymore...

Please help.