IE浏览器右键菜单插件开发（下篇）——如何用c#安装、卸载IE右键插件

建立Installer安装类，如图：

代码如下：

using Microsoft.Win32;
using ResourceShare.UserClient.Common;
using System;
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.Configuration.Install;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Text;

namespace HtmlExtractor
{
    [RunInstaller(true)]
    public partial class InstallerIEPlugin : System.Configuration.Install.Installer
    {

        private static string STRING_INTERNET_EXPLORER_MENU_EXT_NAME = "右键菜单名称（可修改）";

        private static string ClassId = "DCA4FF81-B81E-4ADF-B6A8-886DEEFE3250";

        public InstallerIEPlugin()
        {
            InitializeComponent();
        }

        public static bool Install(string dllFullName)
        {
            bool result = false;
            ProcessStartInfo processStartInfo = new ProcessStartInfo();
            StringBuilder builder = new StringBuilder();
            Win32APIsFull.GetWindowsDirectory(builder, 255);

            processStartInfo.FileName = Path.Combine(builder.ToString(), "Microsoft.NET" + Path.DirectorySeparatorChar + "Framework" + Path.DirectorySeparatorChar + string.Format("v{0}", Environment.Version.ToString(3)) + Path.DirectorySeparatorChar + "RegAsm.exe");
            processStartInfo.Arguments = string.Format(""{0}" /codebase", dllFullName);
            processStartInfo.WindowStyle = ProcessWindowStyle.Hidden;
            Process.Start(processStartInfo).WaitForExit();

            try
            {
                //为mscrollpath重新建立路径
                using (RegistryKey clessids = Registry.ClassesRoot.OpenSubKey("CLSID\{" + ClassId + "}\InprocServer32", RegistryKeyPermissionCheck.ReadWriteSubTree))
                {
                    if (clessids != null)
                    {
                        clessids.SetValue("", Path.Combine(Environment.SystemDirectory, "mscoree.dll"));
                    }
                }
                //删除所有ShareyIE右键
                using (RegistryKey menuExtKey = Registry.CurrentUser.CreateSubKey(@"SoftwareMicrosoftInternet ExplorerMenuExt", RegistryKeyPermissionCheck.ReadWriteSubTree))
                {
                    foreach (string subName in menuExtKey.GetSubKeyNames())
                    {
                        if (subName.Contains("Sharey"))
                        {
                            menuExtKey.DeleteSubKey(subName);
                        }
                    }
                }
                result = true;
            }
            catch (Exception ex)
            {
                result = false;
                Logger.Debug(ex.Message + "
" + ex.StackTrace);
            }

            try
            {
                using (RegistryKey internetExplorerMenuExt = Registry.CurrentUser.CreateSubKey(@"SoftwareMicrosoftInternet ExplorerMenuExt" + STRING_INTERNET_EXPLORER_MENU_EXT_NAME, RegistryKeyPermissionCheck.ReadWriteSubTree))
                {
                    internetExplorerMenuExt.SetValue("", Path.Combine(Path.GetDirectoryName(dllFullName), @"IEExtractor.htm"));
                    internetExplorerMenuExt.SetValue("Contexts", 243, RegistryValueKind.DWord);
                }
                result = true;
            }
            catch (Exception ex)
            {
                result = false;
                Logger.Debug(ex.Message + "
" + ex.StackTrace);
            }
            return result;
        }

        public static bool UnInstall(string dllFullName)
        {
            bool result = false;
            try
            {
                Registry.CurrentUser.DeleteSubKey(@"SoftwareMicrosoftInternet ExplorerMenuExt" + STRING_INTERNET_EXPLORER_MENU_EXT_NAME, false);

                using (RegistryKey menuExtKey = Registry.CurrentUser.CreateSubKey(@"SoftwareMicrosoftInternet ExplorerMenuExt", RegistryKeyPermissionCheck.ReadWriteSubTree))
                {
                    foreach (string subName in menuExtKey.GetSubKeyNames())
                    {
                        if (subName.Contains("Sharey"))
                        {
                            menuExtKey.DeleteSubKey(subName);
                        }
                    }
                }
                result = true;
            }
            catch (Exception ex)
            {
                result = false;
                Logger.Debug(ex.Message + "
" + ex.StackTrace);
            }

            try
            {
                ProcessStartInfo processStartInfo = new ProcessStartInfo();

                StringBuilder builder = new StringBuilder();
                Win32APIsFull.GetWindowsDirectory(builder, 255);

                processStartInfo.FileName = Path.Combine(builder.ToString(), "Microsoft.NET" + Path.DirectorySeparatorChar + "Framework" + Path.DirectorySeparatorChar + string.Format("v{0}", Environment.Version.ToString(3)) + Path.DirectorySeparatorChar + "RegAsm.exe");

                processStartInfo.Arguments = string.Format(" "{0}" /unregister", dllFullName);
                processStartInfo.WindowStyle = ProcessWindowStyle.Hidden;

                Process.Start(processStartInfo).WaitForExit();
                result = true;
            }
            catch (Exception ex)
            {
                result = false;
                Logger.Debug(ex.Message + "
" + ex.StackTrace);
            }
            return result;
        }

        public override void Install(IDictionary stateSaver)
        {
            base.Install(stateSaver);
        }

        public override void Commit(IDictionary savedState)
        {
            Install(this.Context.Parameters["assemblypath"]);

            base.Commit(savedState);
        }

        public override void Rollback(IDictionary savedState)
        {
            UnInstall(this.Context.Parameters["assemblypath"]);

            base.Rollback(savedState);
        }

        public override void Uninstall(IDictionary savedState)
        {
            UnInstall(this.Context.Parameters["assemblypath"]);

            base.Uninstall(savedState);
        }

        public static bool IsSetuped()
        {
            return (Registry.CurrentUser.OpenSubKey("SOFTWARE\Microsoft\Internet Explorer\MenuExt\" + STRING_INTERNET_EXPLORER_MENU_EXT_NAME, RegistryKeyPermissionCheck.ReadSubTree) != null);
        }
    }
}

第33行，调用了win32:的方法：

        /// <summary>
        /// 获取系统安装目录
        /// </summary>
        /// <param name="SysDir"></param>
        /// <param name="count"></param>
        [DllImport("kernel32.dll")]
        public static extern void GetWindowsDirectory(StringBuilder WinDir, int count);