Simple Singleton Object

This is a simple Singleton class created which I have serialized using separate serialized class and saved in a text file in encrypted form. The main reason of having separate Singleton Class object and Serialized Class object is to maintain its basic integrity and keep maintainable easy.

Reference - http://msdn.microsoft.com/en-us/library/ff650316.aspx

To See how to serialize in encrypted form please refer to my previous implementation (link below).

Serialize singleton object to file - encrypted

Implementation:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Diagnostics;

namespace TestNamespace
{
    public class SingletonClass
    {
        string abc;
        
        // This is the crux of singleton implementation
        private static SingletonClass instance;
        private SingletonClass(){}
        public static SingletonClass Instance
        {
            get
            {
                if (instance == null)
                {
                    instance = new SingletonClass();
                }
                return instance;
            }
        }

        // standard get and set methods
        public Version ABC
        {
            get { return abc; }
            set { abc = value; }
        }
    }
}