c sharp lists the SQL Server servers available on the LAN

SQLDMO is provided by SQLDMO.dll, which comes with Microsoft   SQL   Server. Since SQLDMO.dll is an COM object, you must add a reference to it in the.NET project before using it. Note to add the COM reference, find "Microsoft     SQLDMO Object   Library (possible path: system disk :\Program   Files\Microsoft   SQL   Server\80\Tools\Binn\ sqldmo.dll)" and click ok to add the reference.
The following is a class in C# to list Microsoft   SQL   Server available on a LAN:

using   System;
using   System.Collections.Generic;
using   System.Text;

namespace   AllSqlServer
{
        class   Program
        {
                static   void   Main(string[]   args)
                {
                        SQLDMO.NameList   names;
                        SQLDMO.ApplicationClass   ac   =   new   SQLDMO.ApplicationClass();
                        names   =   ac.ListAvailableSQLServers();
                        string[]   serverList   =   new   string[names.Count];
                        for   (int   i   =   0;   i   <   serverList.Length;   i++)
                        {
                                serverList[i]   =   names.Item(i);
                        }
                        foreach   (string   str   in   serverList)
                        {
                                Console.WriteLine(str);
                        }
                        Console.ReadLine();
                }
        }
}