C#

using System;
using System.Collections;

namespace ConsoleApplication1
{

	/// <summary>
	/// Contains two entities. This would be more flexable
	/// if we were using templates.
	/// </summary>
	class Pair
	{	
		public String MyString
		{
			get
			{
				return _string;
			}
			set
			{
				_string = value;
			}
		}

		public int MyInt
		{
			get
			{
				return _int;
			}
			set
			{
				_int = value;
			}
		}

		private int _int;
		private String _string;
	}

	/// <summary>
	/// This class will do the comparing. Change the order of
	/// left and right to obtain an descending order.
	/// </summary>
	class PairComparer : IComparer
	{
		#region IComparer Members

		public int Compare(object x, object y)
		{
			Pair left = (Pair)x;
			Pair right = (Pair)y;
			return left.MyInt.CompareTo(right.MyInt);
		}

		#endregion
	}

	/// <summary>
	/// Summary description for Class1.
	/// </summary>
	class Class1
	{
		/// <summary>
		/// The main entry point for the application.
		/// </summary>
		[STAThread]
		static void Main(string[] args)
		{
			Pair[] pairs = new Pair[3];
			pairs[0] = new Pair();
			pairs[0].MyInt = 10;
			pairs[0].MyString = "Ten";

			pairs[1] = new Pair();
			pairs[1].MyInt = 3;
			pairs[0].MyString = "Three";

			pairs[2] = new Pair();
			pairs[2].MyInt = 1;
			pairs[2].MyString = "One";

			// Sort the array the way we want to 
			// by specifying the comparer
			Array.Sort(pairs, new PairComparer());

			// Print out the results to see if the comparing
			// was successful
			foreach (Pair pair in pairs)
			{
				Console.WriteLine(
					"Pair: {0} {1}" , 
					pair.MyInt, 
					pair.MyString);
			}

		}
	}
}

/// <summary>
       /// This routine updates the start mode of the provided service.
       /// Add Reference to System.Management .net Assembly
       /// </summary>
       /// <param name="serviceName">Name of the service to be updated</param>
       /// <param name="startMode">Manual or Automatic. This parameter could probably use
       /// an enum.</param>
       /// <param name="errorMsg">If applicable, error message assoicated with exception</param>
       /// <returns>Success or failure.  False is returned if service is not found.</returns>
       public bool ServiceStartModeUpdate(string serviceName, string startMode, out string errorMsg)
       {
           uint success = 1;
           errorMsg = string.Empty;

           string filter =
               String.Format("SELECT * FROM Win32_Service WHERE Name = '{0}'", serviceName);

           System.Management.ManagementObjectSearcher query = new ManagementObjectSearcher(filter);

           // No match = failed condition
           if (query == null) return false;

           try
           {
               ManagementObjectCollection services = query.Get();

               foreach (ManagementObject service in services)
               {
                   ManagementBaseObject inParams =
                       service.GetMethodParameters("ChangeStartMode");
                   inParams["startmode"] = startMode;

                   ManagementBaseObject outParams =
                       service.InvokeMethod("ChangeStartMode", inParams, null);
                   success = Convert.ToUInt16(outParams.Properties["ReturnValue"].Value);
                   //custom method
                   errorMsg = GetErrorMsg(success) + "\n Try \"Run as Administrator\" ";
               }
           }
           catch (Exception ex)
           {
               errorMsg = ex.Message;
               throw;
           }

           return (success == 0);
       }