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, );

             processStartInfo.FileName = Path.Combine(builder.ToString(), "Microsoft.NET" + Path.DirectorySeparatorChar + "Framework" + Path.DirectorySeparatorChar + string.Format("v{0}", Environment.Version.ToString()) + 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(@"Software\Microsoft\Internet Explorer\MenuExt", 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 + "\r\n" + ex.StackTrace);
             }

             try
             {
                 using (RegistryKey internetExplorerMenuExt = Registry.CurrentUser.CreateSubKey(@"Software\Microsoft\Internet Explorer\MenuExt\" + STRING_INTERNET_EXPLORER_MENU_EXT_NAME, RegistryKeyPermissionCheck.ReadWriteSubTree))
                 {
                     internetExplorerMenuExt.SetValue("", Path.Combine(Path.GetDirectoryName(dllFullName), @"IEExtractor.htm"));
                     internetExplorerMenuExt.SetValue("Contexts", , RegistryValueKind.DWord);
                 }
                 result = true;
             }
             catch (Exception ex)
             {
                 result = false;
                 Logger.Debug(ex.Message + "\r\n" + ex.StackTrace);
             }
             return result;
         }

         public static bool UnInstall(string dllFullName)
         {
             bool result = false;
             try
             {
                 Registry.CurrentUser.DeleteSubKey(@"Software\Microsoft\Internet Explorer\MenuExt\" + STRING_INTERNET_EXPLORER_MENU_EXT_NAME, false);

                 using (RegistryKey menuExtKey = Registry.CurrentUser.CreateSubKey(@"Software\Microsoft\Internet Explorer\MenuExt", 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 + "\r\n" + ex.StackTrace);
             }

             try
             {
                 ProcessStartInfo processStartInfo = new ProcessStartInfo();

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

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