internal static void GetUserProperties(string user, out string firstName, out string lastName, out string emailAddress, out string telephone, out string address)
        {
            // Creating the PrincipalContext
            PrincipalContext principalContext = null;
            try
            {
                principalContext = new PrincipalContext(ContextType.Domain, "fabrikam", "DC=fabrikam,DC=com");
            }
            catch (Exception e)
            {
                MessageBox.Show("Failed to create PrincipalContext. Exception: " + e);
                Application.Exit();
            }

            //Getting the properties of the user
            UserPrincipal userPrincipal = UserPrincipal.FindByIdentity(principalContext, user);
            firstName = null; lastName = null; emailAddress = null; telephone = null; address = null;
            if (userPrincipal != null)
            {
                if (userPrincipal.GivenName != null)
                    firstName = userPrincipal.GivenName;

                if (userPrincipal.Surname != null)
                    lastName = userPrincipal.Surname;

                if (userPrincipal.EmailAddress != null)
                    emailAddress = userPrincipal.EmailAddress;

                if (userPrincipal.VoiceTelephoneNumber != null)
                    telephone = userPrincipal.VoiceTelephoneNumber;

                if (userPrincipal.GetUnderlyingObjectType() == typeof(DirectoryEntry))
                {
                    DirectoryEntry entry = (DirectoryEntry)userPrincipal.GetUnderlyingObject();
                    string userAddress = (string)entry.Properties["streetAddress"].Value;
                    if (userAddress != null && userAddress.Length > 0)
                        address = userAddress;
                }

            }
            else
            {
                MessageBox.Show("Could not find the user [" + user + "]");
                return;
            }

        }