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Get value from Registry

/* C# Programming Tips & Techniques by Charles Wright, Kris Jamsa Publisher: Osborne/McGraw-Hill (December 28, 2001) ISBN: 0072193794 */ namespace nsRegKey {     using System;     using Microsoft.Win32;     public class RegKeyclsMain     {         static public void Main ()         {             int x;             string RegID =                     "HARDWARE\\DESCRIPTION\\System\\CentralProcessor\\";             for (x = 0; x < 4; ++x)             {                 string ValueID = RegID + x;                 RegistryKey key = Registry.LocalMachine;                 Object cpuType;                 object cpuSpeed;                 key = key.OpenSubKey(ValueID);                 if (key == null)                     break;                 cpuType = key.GetValue("VendorIdentifier");                 cpuSpeed = key.GetValue("~MHz");                 Console.WriteLine ("Processor {0} is {1} {2}",                                    x,                                    cpuSpeed == null ? "speed unknown"                                       : cpuSpeed.ToString() + " MHz",                                    cpuType == null ? "type unknown"                                       : cpuType.ToString());                 key.Close ();             }             Console.WriteLine ("\r\nThis computer has {0} {1}",                                x, x == 1 ? "processor" : "processors");         }     } }