Key Finder Application ( Windows) in C # Vs2010

Question

Dear Friends,   Please Tell me how to make a key finder application (Windows) in C # Vs 2010 step by step with screen shots.       Regards Puneet Ahooja

puneet ahooja · Answer

Dear Friend,   According to the above mentioned article,  I want to make this key finder application for learning but it showing error.   Article No: http://www.codeproject.com/Articles/23334/Microsoft-Product-Key-Finder     Error Is: with Red Marking   class KeyDecoder { public enum Key { XP, Office10, Office11 }; public static byte[] GetRegistryDigitalProductId(Key key) { byte[] digitalProductId = null; RegistryKey registry = null; switch (key) { // Open the XP subkey readonly. case Key.XP: registry = Registry.LocalMachine. OpenSubKey( @"SOFTWARE\Microsoft\Windows NT\CurrentVersion", false); break; // Open the Office 10 subkey readonly. case Key.Office10: registry = Registry.LocalMachine. OpenSubKey( @"SOFTWARE\Microsoft\Office\10.0\Registration\" + @"{90280409-6000-11D3-8CFE-0050048383C9}", false); // TODO: Open the registry key. break; // Open the Office 11 subkey readonly. case Key.Office11: // TODO: Open the registry key. break; } if (registry != null) { // TODO: For other products, key name maybe different. digitalProductId = registry.GetValue("DigitalProductId") as byte[]; registry.Close(); } return digitalProductId; } public static string DecodeProductKey(byte[] digitalProductId) { // Offset of first byte of encoded product key in // 'DigitalProductIdxxx" REG_BINARY value. Offset = 34H. const int keyStartIndex = 52; // Offset of last byte of encoded product key in // 'DigitalProductIdxxx" REG_BINARY value. Offset = 43H. const int keyEndIndex = keyStartIndex + 15; // Possible alpha-numeric characters in product key. char[] digits = new char[] { 'B', 'C', 'D', 'F', 'G', 'H', 'J', 'K', 'M', 'P', 'Q', 'R', 'T', 'V', 'W', 'X', 'Y', '2', '3', '4', '6', '7', '8', '9', }; // Length of decoded product key const int decodeLength = 29; // Length of decoded product key in byte-form. // Each byte represents 2 chars. const int decodeStringLength = 15; // Array of containing the decoded product key. char[] decodedChars = new char[decodeLength]; // Extract byte 52 to 67 inclusive. ArrayList hexPid = new ArrayList(); for (int i = keyStartIndex; i { hexPid.Add(digitalProductId[i]); } for (int i = decodeLength - 1; i >= 0; i--) { // Every sixth char is a separator. if ((i + 1) % 6 == 0) { decodedChars[i] = '-'; } else { // Do the actual decoding. int digitMapIndex = 0; for (int j = decodeStringLength - 1; j >= 0; j--) { int byteValue = (digitMapIndex hexPid[j] = (byte)(byteValue / 24); digitMapIndex = byteValue % 24; decodedChars[i] = digits[digitMapIndex]; } } } return new string(decodedChars); } }  }     Aplication form Like This      Windows   Office Key       Form Load Event Code is  as mentioned in Article no. 23334:   private void Form1_Load(object sender, EventArgs e) { byte[] results1 = KeyDecoder.GetRegistryDigitalProductId(KeyDecoder.Key.XP); textBox1.Text = KeyDecoder.DecodeProductKey(results1); byte[] results2 = KeyDecoder.GetRegistryDigitalProductId(KeyDecoder.Key.Office10); textBox2.Text = KeyDecoder.DecodeProductKey(results2); } } }     Please help   Regards Puneet Ahooja

Arul R · Answer

Kindly refer the below links, Hope this will solve your problem.   http://www.codeproject.com/Articles/23334/Microsoft-Product-Key-Finder   Let me know for any thing more.... If your problem solved means kindly Accept my answer

Windows	Office Key