c#调用WinRAR软件压缩和解压文件

 using System;
 using System.Collections.Generic;
 using System.Web;
 using System.IO;
 using System.Linq;
 using System.IO.Compression;
 using System.Text;
 using System.Collections;
 using System.Diagnostics;
 using Microsoft.Win32;

 namespace RarHelper
 {
     public class RARClass
     {
         /// <summary>
         /// 获取WinRAR.exe路径
         /// </summary>
         /// <returns>为空则表示未安装WinRAR</returns>
         public static string ExistsRAR()
         {
             RegistryKey regkey = Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\WinRAR.exe");
             //RegistryKey regkey = Registry.ClassesRoot.OpenSubKey(@"Applications\WinRAR.exe\shell\open\command");
             string strkey = regkey.GetValue("").ToString();
             regkey.Close();
             //return strkey.Substring(1, strkey.Length - 7);
             return strkey;
         }

         /// <summary>
         /// 解压RAR文件
         /// </summary>
         /// <param name="rarFilePath">要解压的文件路径</param>
         /// <param name="unrarDestPath">解压路径（绝对路径）</param>
         public static void UnRAR(string rarFilePath, string unrarDestPath)
         {
             string rarexe = ExistsRAR();
             if (String.IsNullOrEmpty(rarexe))
             {
                 throw new Exception("未安装WinRAR程序。");
             }
             try
             {
                 //组合出需要shell的完整格式
                 string shellArguments = string.Format("x -o+ \"{0}\" \"{1}\\\"", rarFilePath, unrarDestPath);

                 //用Process调用
                 using (Process unrar = new Process())
                 {
                     ProcessStartInfo startinfo = new ProcessStartInfo();
                     startinfo.FileName = rarexe;
                     startinfo.Arguments = shellArguments;               //设置命令参数
                     startinfo.WindowStyle = ProcessWindowStyle.Hidden;  //隐藏 WinRAR 窗口  

                     unrar.StartInfo = startinfo;
                     unrar.Start();
                     unrar.WaitForExit();//等待解压完成  

                     unrar.Close();
                 }
             }
             catch
             {
                 throw;
             }
         }

         /// <summary>
         ///  压缩为RAR文件
         /// </summary>
         /// <param name="filePath">要压缩的文件路径（绝对路径）</param>
         /// <param name="rarfilePath">压缩到的路径（绝对路径）</param>
         public static void RAR(string filePath, string rarfilePath, string otherPara = "")
         {
             RAR(filePath, rarfilePath, "", "", otherPara);
         }

         /// <summary>
         ///  压缩为RAR文件
         /// </summary>
         /// <param name="filePath">要压缩的文件路径（绝对路径）</param>
         /// <param name="rarfilePath">压缩到的路径（绝对路径）</param>
         /// <param name="rarName">压缩后压缩包名称</param>
         public static void RAR(string filePath, string rarfilePath, string rarName, string otherPara = "")
         {
             RAR(filePath, rarfilePath, "", rarName, otherPara);
         }

         /// <summary>
         ///  压缩为RAR文件
         /// </summary>
         /// <param name="filePath">要压缩的文件路径（绝对路径）</param>
         /// <param name="rarfilePath">压缩到的路径（绝对路径）</param>
         /// <param name="rarName">压缩后压缩包名称</param>
         /// <param name="password">解压密钥</param>
         public static void RAR(string filePath, string rarfilePath, string password, string rarName, string otherPara = "")
         {
             string rarexe = ExistsRAR();
             if (String.IsNullOrEmpty(rarexe))
             {
                 throw new Exception("未安装WinRAR程序。");
             }

             if (!Directory.Exists(filePath))
             {
                 //throw new Exception("文件不存在！");
             }

             if (String.IsNullOrEmpty(rarName))
             {
                 rarName = Path.GetFileNameWithoutExtension(filePath) + ".rar";
             }
             else
             {
                 if (Path.GetExtension(rarName).ToLower() != ".rar")
                 {
                     rarName += ".rar";
                 }
             }

             try
             {
                 //Directory.CreateDirectory(rarfilePath);
                 //压缩命令，相当于在要压缩的文件夹(path)上点右键->WinRAR->添加到压缩文件->输入压缩文件名(rarName)
                 string shellArguments;
                 if (String.IsNullOrEmpty(password))
                 {
                     shellArguments = string.Format("a -ep1 \"{0}\" \"{1}\" -r", rarName, filePath);
                 }
                 else
                 {
                     shellArguments = string.Format("a -ep1 \"{0}\" \"{1}\" -r -p\"{2}\"", rarName, filePath, password);
                 }
                 if (!string.IsNullOrEmpty(otherPara))
                 {
                     shellArguments = shellArguments + " " + otherPara;
                 }

                 using (Process rar = new Process())
                 {
                     ProcessStartInfo startinfo = new ProcessStartInfo();
                     startinfo.FileName = rarexe;
                     startinfo.Arguments = shellArguments;               //设置命令参数
                     startinfo.WindowStyle = ProcessWindowStyle.Hidden;  //隐藏 WinRAR 窗口
                     startinfo.WorkingDirectory = rarfilePath;

                     rar.StartInfo = startinfo;
                     rar.Start();
                     rar.WaitForExit(); //无限期等待进程 winrar.exe 退出
                     rar.Close();
                 }
             }
             catch
             {
                 throw;
             }
         }

     }
 }