C#

[DllImport("kernel32.dll")]
private static extern bool SetSystemTime(ref SystemTime time);
 
[StructLayout(LayoutKind.Sequential)]
private struct SystemTime{
  [MarshalAs(UnmanagedType.U2)] public short Year;
  [MarshalAs(UnmanagedType.U2)] public short Month;
  [MarshalAs(UnmanagedType.U2)] public short DayOfWeek;
  [MarshalAs(UnmanagedType.U2)] public short Day;
  [MarshalAs(UnmanagedType.U2)] public short Hour;
  [MarshalAs(UnmanagedType.U2)] public short Minute;
  [MarshalAs(UnmanagedType.U2)] public short Second;
  [MarshalAs(UnmanagedType.U2)] public short Milliseconds;
}

SqlConnection conn = new SqlConnect(
  "Integrated Security=SSPI;Data Source=DBSRV1;Initial Catalog=master");
SqlCommand cmd = conn.CreateCommand();
cmd.CommandType = CommandType.StoredProcedure;
cmd.CommandText = "sp_attach_db";
cmd.Parameters.Add("@dbname", SqlDbType.NVarChar, 128).Value = "MyDB";
cmd.Parameters.Add("@filename1", SqlDbType.NVarChar, 260).Value = 
  @"C:\Program Files\Microsoft SQL Server\MSSQL\Data\MyDB.mdf";
cmd.Parameters.Add("@filename2", SqlDbType.NVarChar, 260).VAlue = 
  @"C:\Program Files\Microsoft SQL Server\MSSQL\Data\MyDB.ldf";
try
{
  conn.Open();
  cmd.ExecuteNonQuery();
}
finally
{
  conn.Close();
}

<br />
using System.Net;<br />
<br />
// ...<br />
<br />
IPHostEntry hostEntry = Dns.GetHostByName(Dns.GetHostName());<br />
IPAddress[] addresses = hostEntry.AddressList;<br />
for(int x = 0; x < addresses.Length; x++) {<br />
   Console.WriteLine(addresses[x]);<br />
}<br />

using System;
using System.Net;
using System.Net.Sockets;

public class IPAddresses
{
  static void Main(string[] args)
  {
    string name = Environment.MachineName;
    if (args.Length > 0)
      name = args[0];

    IPHostEntry host = Dns.GetHostByName(name);
    foreach (IPAddress address in host.AddressList)
    {
      Console.WriteLine("{0,15}: {1}", address.AddressFamily, address);
      if (address.AddressFamily == AddressFamily.InterNetworkV6)
        Console.WriteLine("                 ScopeID: {0}", address.ScopeId);
    }
  }
}