Little Registry Cleaner/Scanners/WindowsHelpFiles.cs

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/*
    Little Registry Cleaner
    Copyright (C) 2008 Little Apps (http://www.little-apps.org/)

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using Microsoft.Win32;

namespace Little_Registry_Cleaner.Scanners
{
    public class WindowsHelpFiles : ScannerBase
    {
        public override string ScannerName
        {
            get { return Strings.WindowsHelpFiles; }
        }

        public static void Scan()
        {
            try
            {
                CheckHelpFiles(Registry.LocalMachine.OpenSubKey("SOFTWARE\\Microsoft\\Windows\\HTML Help"));
                CheckHelpFiles(Registry.LocalMachine.OpenSubKey("SOFTWARE\\Microsoft\\Windows\\Help"));
            }
            catch (System.Security.SecurityException ex)
            {
                System.Diagnostics.Debug.WriteLine(ex.Message);
            }
        }

        /// <summary>
        /// Scans for invalid windows help files
        /// </summary>
        private static void CheckHelpFiles(RegistryKey regKey)
        {
            if (regKey == null)
                return;

            Main.Logger.WriteLine("Checking for missing help files in " + regKey.Name);

            foreach (string strHelpFile in regKey.GetValueNames())
            {
                string strHelpPath = regKey.GetValue(strHelpFile) as string;