Open a Word document in which the file name is user input

[halt4814]

I am trying to have the user input a filename with extension, and then have a c# program open that file in MS Word 2010. However, I cannot seem to figure it out. Any help? I am running Visual Studio 2010 and have a console application.

Here is the code so far...

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using word = Microsoft.Office.Interop.Word;
using System.IO;

namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
System.Console.Write("Enter the file name: ");
String fileName = System.Console.ReadLine();

FileStream fileStream = new FileStream(@"H:\SNH\" + fileName, FileMode.Open);

}
}
}

However, it seems like it runs but does nothing...