Use public DirectorySecurity GetAccessControl () for eg; using System; using System.IO; using System.Security.AccessControl; namespace FileSystemExample { class DirectoryExample { public static void Main() { try { string DirectoryName = "TestDirectory"; Console.WriteLine("Adding access control entry for " + DirectoryName); // Add the access control entry to the directory. AddDirectorySecurity(DirectoryName, @"MYDOMAIN\MyAccount", FileSystemRights.ReadData, AccessControlType.Allow); Console.WriteLine("Removing access control entry from " + DirectoryName); // Remove the access control entry from the directory. RemoveDirectorySecurity(DirectoryName, @"MYDOMAIN\MyAccount", FileSystemRights.ReadData, AccessControlType.Allow); Console.WriteLine("Done."); } catch (Exception e) { Console.WriteLine(e); } Console.ReadLine(); } // Adds an ACL entry on the specified directory for the specified account. public static void AddDirectorySecurity(string FileName, string Account, FileSystemRights Rights, AccessControlType ControlType) { // Create a new DirectoryInfo object. DirectoryInfo dInfo = new DirectoryInfo(FileName); // Get a DirectorySecurity object that represents the // current security settings. DirectorySecurity dSecurity = dInfo.GetAccessControl(); // Add the FileSystemAccessRule to the security settings. dSecurity.AddAccessRule(new FileSystemAccessRule(Account, Rights, ControlType)); // Set the new access settings. dInfo.SetAccessControl(dSecurity); } // Removes an ACL entry on the specified directory for the specified account. public static void RemoveDirectorySecurity(string FileName, string Account, FileSystemRights Rights, AccessControlType ControlType) { // Create a new DirectoryInfo object. DirectoryInfo dInfo = new DirectoryInfo(FileName); // Get a DirectorySecurity object that represents the // current security settings. DirectorySecurit