RegistryKey Class does everything for you.
OpenSubKey
MSDN sample code:
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using System;
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using Microsoft.Win32;
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using Microsoft.VisualBasic;
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public class Example
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{
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public static void Main()
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{
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// Delete and recreate the test key.
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Registry.CurrentUser.DeleteSubKey("RegistryOpenSubKeyExample", false);
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RegistryKey rk = Registry.CurrentUser.CreateSubKey("RegistryOpenSubKeyExample");
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rk.Close();
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// Obtain an instance of RegistryKey for the CurrentUser registry
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// root.
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RegistryKey rkCurrentUser = Registry.CurrentUser;
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// Obtain the test key (read-only) and display it.
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RegistryKey rkTest = rkCurrentUser.OpenSubKey("RegistryOpenSubKeyExample");
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Console.WriteLine("Test key: {0}", rkTest);
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rkTest.Close();
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rkCurrentUser.Close();
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// Obtain the test key in one step, using the CurrentUser registry
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// root.
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rkTest = Registry.CurrentUser.OpenSubKey("RegistryOpenSubKeyExample");
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Console.WriteLine("Test key: {0}", rkTest);
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rkTest.Close();
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// Open the test key in read/write mode.
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rkTest = Registry.CurrentUser.OpenSubKey("RegistryOpenSubKeyExample", true);
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rkTest.SetValue("TestName", "TestValue");
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Console.WriteLine("Test value for TestName: {0}", rkTest.GetValue("TestName"));
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rkTest.Close();
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} //Main
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} //Example
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Hope this helps.
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