C#

using System;
using System.Threading;
public class MyClass
{
  public string s1, s2, s3;
  public MyClass(string s1, string s2, string s3)
  {
    this.s1 = s1;
    this.s2 = s2;
    this.s3 = s3;
  }
  public void Start()
  {
    new Thread(new ThreadStart(StartInternal)).Start();
  }
  private void StartInternal()
  {
    // Use s1, s2, and s3...
  }
}

object[] parms = new object[] {"Test", 1, Color.Red};
ThreadPool.QueueUserWorkItem(new WaitCallback(SomeMethod), parms);