using System;
using System.IO;
using System.Security.AccessControl;
static class MainClass
{
static void Main(string[] args)
{
FileStream stream = null;
string fileName = "c:\\test.txt";
// Deny 'Everyone' access to the file
FileSecurity fSecurity = File.GetAccessControl(fileName);
fSecurity.ResetAccessRule(new FileSystemAccessRule("Everyone",FileSystemRights.Read, AccessControlType.Deny));
File.SetAccessControl(fileName, fSecurity);
// Attempt to access file.
try
{
stream = new FileStream(fileName, FileMode.Create);
}
catch (Exception ex)
{
Console.WriteLine("Exception thrown: ");
Console.WriteLine(ex.ToString());
}
finally
{
stream.Close();
stream.Dispose();
}
}
}