How to get install location of from registry in C#?

<pre>  StreamWriter sw = new StreamWriter(@"D:\localmachineProducts64.txt", true);
            using (RegistryKey rk = Registry.LocalMachine.OpenSubKey(uninstallKey))
            {
                foreach (string skName in rk.GetSubKeyNames())
                {
                    using (RegistryKey sk = rk.OpenSubKey(skName))
                    {
                        try
                        {
                            sw.Write(sk.GetValue("DisplayName") + "\t" + sk.GetValue("InstallLocation"));
                            sw.Write(sw.NewLine);
                            count++;
                        }
                        catch (Exception ex)
                        {
                            MessageBox.Show(ex.Message);
                        }
                    }
                }
                sw.Write("Total count  :=" + count);
            }
            sw.Close();