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