using System;
public class Program{
public static void Main(){
//( Define the path )
var MyPath = Environment.GetFolderPath(Environment.SpecialFolder.Personal);
//( define file name )
string Myfile = System.IO.Path.Combine(MyPath, String.Format("FlexiFleet_{0}.jpg", Guid.NewGuid()));
Console.WriteLine( Myfile );
}