RegistryConfigurator.cs

public static class RegistryConfigurator
{
    private static RegistryKey baseRegistryKey = Registry.LocalMachine;
    public static RegistryKey BaseRegistryKey
    {
        get { return baseRegistryKey; }
        set { baseRegistryKey = value; }
    }
 
    private static string subKey = "SOFTWARE\\My-Application";
    public static string SubKey
    {
        get { return subKey; }
        set { subKey = value; }
    }
 
    public static string ReadKey(string Key) 
    {
        ThrowError(Key);
 
        RegistryKey rgstryKey = baseRegistryKey.OpenSubKey(subKey);
 
        return rgstryKey == null ? null : (string)rgstryKey.GetValue(Key);
    }
 
    public static bool DeleteKey(string Key) 
    {
        ThrowError(Key);
        RegistryKey rgstryKey = baseRegistryKey.CreateSubKey(subKey);
 
        if (rgstryKey == null)
            return false;
        else
            rgstryKey.DeleteValue(Key);
        return true;
    }
 
    public static bool Write(string Key, object Value) 
    {
        ThrowError(Key);
        try
        {
            RegistryKey rgstryKey = baseRegistryKey.CreateSubKey(subKey);
            rgstryKey.SetValue(Key.ToUpper(), Value);
        }
        catch (Exception ex) 
        {
            throw new ApplicationException(ex.Message);                
        }
        return true;
    }
 
    public static bool DeleteSubKeyTree()
    {
        try
        {
            RegistryKey rgstryKey = baseRegistryKey.OpenSubKey(subKey);
 
            if (rgstryKey != null)
                baseRegistryKey.DeleteSubKeyTree(subKey);
 
            return true;
        }
        catch (Exception ex)
        {
            return false;
        }
    }
 
    private static void ThrowError(string value)
    {
        if (String.IsNullOrEmpty(value))
            throw new ApplicationException("Your Key is Null...");
    }
}