using System.Thearding //add this namespace.
..
..
//part atr which to create a thread .
first find the function which to be executed in new thread.
it should be of the form
public void funname();..
now create delegate of type ThreadStart.
ThreadStart startmethod= new ThreadStart(funname);
and assign
now create thread
Thread mythread = new Thread(startmethod);
now call the start method of thread..
mythread.start();