Mine

using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using Microsoft.Win32;
using System.Threading;

namespace regExtractor
{
    class Code
    {
        static void Main(string[] args)
        {
            const string FILE_NAME = "C://CDKeys.txt"; // Create File
            string CallofDutyKey, CallofDuty2Key, CodUO, WinampKey, WinXPKey, UT2004Key, BFKey, BFKeyy, mscftk, aeoiikey, abdkey, halokey, tonykey;
            using (StreamWriter sw = File.CreateText(FILE_NAME)) // New StreamWriter class
            {
                sw.WriteLine("+----------------------------------------------------------------+");
                sw.WriteLine("+---- illuz1oN + Turv` CD Key Extractor Log ---+");
                sw.WriteLine("+---- Coded By illuz1oN & Turv` - 15/10/07! ----+");
                sw.WriteLine("+----------------------------------------------------------------+");
                sw.WriteLine();
                sw.WriteLine();
                try
                {	////////////	CALL OF DUTY 2
                    RegistryKey Cod2Key = Registry.LocalMachine; //Set LclKey!
                    Cod2Key = Cod2Key.OpenSubKey(@"SOFTWARE\Activision\Call of Duty 2\", true); //Path to CoD Dir!
                    CallofDuty2Key = Cod2Key.GetValue("codkey", true).ToString();
                    // Assign CD Key to the variable CallofDutyKey
                    sw.WriteLine("Call of Duty 2 Key: {0}", CallofDuty2Key);
                    // Print CD Key to file
                }
                catch (Exception)
                {	// If no CD Key found then....
                    sw.WriteLine("Call of Duty 2 Key: No Key Found");
                }

                try
                {	////////////	CALL OF DUTY

                    RegistryKey CodKey = Registry.LocalMachine; //Set LclKey!
                    CodKey = CodKey.OpenSubKey(@"SOFTWARE\Activision\Call of Duty\", true); //Path to CoD Dir!
                    CallofDutyKey = CodKey.GetValue("codkey", true).ToString();
                    // Assign CD Key to the variable CallofDutyKey
                    sw.WriteLine("Call of Duty Key: {0}", CallofDutyKey);
                    // Print CD Key to file
                }
                catch (Exception)
                {	// If no CD Key found then....
                    sw.WriteLine("Call of Duty Key: No Key Found");
                }

                try
                {	////////////	CALL OF DUTY: UO

                    RegistryKey CodUOKey = Registry.LocalMachine; //Set LclKey!
                    CodUOKey = CodUOKey.OpenSubKey(@"SOFTWARE\Activision\Call of Duty United Offensive\", true); //Path to CoD Dir!
                    CodUO = CodUOKey.GetValue("key", true).ToString();

                    sw.WriteLine("Call of Duty:UO Key: {0}", CodUO);
                    // Print CD Key to file
                }
                catch (Exception)
                {	// If no CD Key found then....
                    sw.WriteLine("Call of Duty:UO Key: No Key Found");
                }

                try
                {	////////////	UT2004

                    RegistryKey UT2004 = Registry.LocalMachine; //Set LclKey!
                    UT2004 = UT2004.OpenSubKey(@"SOFTWARE\Unreal Technology\Installed Apps\UT2004\", true); //Path to CoD Dir!
                    UT2004Key = UT2004.GetValue("CDKey", true).ToString();

                    sw.WriteLine("Unreal Tournament 2004 Key: {0}", UT2004Key);
                    // Print CD Key to file
                }
                catch (Exception)
                {	// If no CD Key found then....
                    sw.WriteLine("Unreal Tournament 2004 Key: No Key Found");
                }

                try
                {	////////////	Winamp

                    RegistryKey Winamp = Registry.LocalMachine; //Set LclKey!
                    Winamp = Winamp.OpenSubKey(@"SOFTWARE\Nullsoft\Winamp\", true); //Path to CoD Dir!
                    WinampKey = Winamp.GetValue("regkey", true).ToString();

                    sw.WriteLine("Winamp Key: {0}", WinampKey);

                }
                catch (Exception)
                {	// If no CD Key found then....
                    sw.WriteLine("Winamp Key: No Key Found");
                }

                try
                {	////////////	Windows XP

                    RegistryKey WinXP = Registry.LocalMachine; //Set LclKey!
                    WinXP = WinXP.OpenSubKey(@"SOFTWARE\Microsoft\Windows\CurrentVersion", true); //Path to CoD Dir!
                    WinXPKey = WinXP.GetValue("ProductId", true).ToString();

                    sw.WriteLine("Windows CD Key: {0}", WinXPKey);

                }
                catch (Exception)
                {	// If no CD Key found then....
                    sw.WriteLine("Windows CD Key: No Key Found");
                }

                try
                {
                    RegistryKey BFN = Registry.LocalMachine;
                    BFN = BFN.OpenSubKey(@"HKLM\SOFTWARE\Electronic Arts\EA Games\Battlefield 2142\", true);
                    BFKey = BFN.GetValue("ergc", true).ToString();
                    sw.WriteLine("BattleField 2141 CD Key: {0}", BFKey);
                }
                catch (Exception)
                {
                    sw.WriteLine("BattleField 2142 CD Key: No Key Found");
                }

                try
                {
                    RegistryKey BF = Registry.LocalMachine;
                    BF = BF.OpenSubKey(@"SOFTWARE\Electronic Arts\EA Games\Battlefield 2\", true);
                    BFKeyy = BF.GetValue("ergc", true).ToString();
                    sw.WriteLine("BattleField 2 CD Key: {0}", BFKeyy);
                }
                catch (Exception)
                {
                    sw.WriteLine("BattleField 2 CD Key: No Key Found");
                }
                try
                {
                    RegistryKey mcsft = Registry.LocalMachine;
                    mcsft = mcsft.OpenSubKey(@"SOFTWARE\Mcft\Office\11.0\Registration\{90110409-6000-11D3-8CFE-0150048383C9}\", true);
                    mscftk = mcsft.GetValue("ProductId", true).ToString();
                    sw.WriteLine("Mcsft Office 2K3 CD Key: {0}", mscftk);
                }
                catch (Exception)
                {
                    sw.WriteLine("Mcsft Office 2K3: No Key Found");
                }
                try
                {
                    RegistryKey aoeii = Registry.LocalMachine;
                    aoeii = aoeii.OpenSubKey(@"SOFTWARE\Microsoft\Microsoft Games\Age of Empires II: The Conquerors Expansion\1.0\");
                    aeoiikey = aoeii.GetValue("PID", true).ToString();
                    sw.WriteLine("Age of Empires II Expansion: {0}", aeoiikey);
                }
                catch (Exception)
                {
                    sw.WriteLine("Age of Empires II: No Key Found");
                }
                try
                {
                    RegistryKey abd = Registry.LocalMachine;
                    abd = abd.OpenSubKey(@"SOFTWARE\Adobe\Illustrator\11\Registration\");
                    abdkey = abd.GetValue("SERIAL", true).ToString();
                    sw.WriteLine("Adobe Illustrator 11: {0}", abdkey);
                }
                catch (Exception)
                {
                    sw.WriteLine("Adobe Illustrator: No Key Found");
                }
                try
                {
                    RegistryKey halo = Registry.LocalMachine;
                    halo = halo.OpenSubKey(@"SOFTWARE\Microsoft\Microsoft Games\Halo\");
                    halokey = halo.GetValue("PID", true).ToString();
                    sw.WriteLine("Halo Key: {0}", halokey);
                }
                catch (Exception)
                {
                    sw.WriteLine("Halo Key: No Key Found");
                }
                try
                {
                    RegistryKey tony = Registry.LocalMachine;
                    tony = tony.OpenSubKey(@"SOFTWARE\Activision\Tony Hawk's Underground 2\");
                    tonykey = tony.GetValue("Key", true).ToString();
                    sw.WriteLine("Tony Hawks UG: 2 Key: {0}", tonykey);
                }
                catch (Exception)
                {
                    sw.WriteLine("Tony Hawks UG: 2: No Key Found");
                }
                sw.Flush();
                sw.Close();
            }
        }
    }
}