File Directory Stream C# Tutorial

using System;
using System.IO;
static class MainClass
{
    static void Main()
    {
        string tempFile = Path.GetTempFileName();
        Console.WriteLine("Using " + tempFile);
        using (FileStream fs = new FileStream(tempFile, FileMode.Open))
        {
            // (Write some data.)
        }
        File.Delete(tempFile);
    }
}
Using C:\Documents and Settings\Joe\Local Settings\Temp\tmp1AE4.tmp