本文的原理是借助Windows平台安装的WinRAR(WinZip)实现C#程序的调用（注：WinRAR压缩解压WinZip同样适用）。

先来看WinRAR（WinZip）自身的支持调用命令：

压缩命令：a {0} {1} -r 【{0}：压缩后文件名|{1}：待压缩的文件物理路径】

ex:"a 你妹.rar f:\\MM -r" （含义为将f盘下MM的文件夹压缩为"你妹.rar"文件）

解压命令：x {0} {1} -y 【{0}：待解压文件名称|{1}：待解压文件物理路径】

ex:"x 幺妹.rar f:\\幺妹 -y"（待压缩文件物理路径："f:\\幺妹\\幺妹.rar"）

参数说明

参数

含义

a

添加文件到压缩包

x

以完整路径从压缩包解开压缩

WinZip（WinRAR）调用通用类

using System;
using System.Collections.Generic;
using System.Text;

//--------------using
using System.Diagnostics;
using Microsoft.Win32;
using System.IO;

/// <summary>
/// Name:Stone
/// DateTime: 2011/12/31 16:39:26
/// Description:WinRAR压缩
/// </summary>
public class WinRARCSharp
{
    // WinRAR安装注册表key
    private const string WinRAR_KEY = @"WinRAR.ZIP\shell\open\command";

    /// <summary>
    /// 利用 WinRAR 进行压缩
    /// </summary>
    /// <param name="path">将要被压缩的文件夹（绝对路径）</param>
    /// <param name="rarPath">压缩后的 .rar 的存放目录（绝对路径）</param>
    /// <param name="rarName">压缩文件的名称（包括后缀）</param>
    /// <returns>true 或 false。压缩成功返回 true，反之，false。</returns>
    public bool RAR(string path, string rarPath, string rarName)
    {
        bool flag = false;
        string rarexe;       //WinRAR.exe 的完整路径
        RegistryKey regkey;  //注册表键
        Object regvalue;     //键值
        string cmd;          //WinRAR 命令参数
        ProcessStartInfo startinfo;
        Process process;
        try
        {
            regkey = Registry.ClassesRoot.OpenSubKey(WinRAR_KEY);
            regvalue = regkey.GetValue("");  // 键值为 "d:\Program Files\WinRAR\WinRAR.exe" "%1"
            rarexe = regvalue.ToString();
            regkey.Close();
            rarexe = rarexe.Substring(1, rarexe.Length - 7);  // d:\Program Files\WinRAR\WinRAR.exe

            Directory.CreateDirectory(path);
            //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)
            cmd = string.Format("a {0} {1} -r",
                                rarName,
                                path);
            startinfo = new ProcessStartInfo();
            startinfo.FileName = rarexe;
            startinfo.Arguments = cmd;                          //设置命令参数
            startinfo.WindowStyle = ProcessWindowStyle.Hidden;  //隐藏 WinRAR 窗口

            startinfo.WorkingDirectory = rarPath;
            process = new Process();
            process.StartInfo = startinfo;
            process.Start();
            process.WaitForExit(); //无限期等待进程 winrar.exe 退出
            if (process.HasExited)
            {
                flag = true;
            }
            process.Close();
        }
        catch (Exception e)
        {
            throw e;
        }
        return flag;
    }
    /// <summary>
    /// 利用 WinRAR 进行解压缩
    /// </summary>
    /// <param name="path">文件解压路径（绝对）</param>
    /// <param name="rarPath">将要解压缩的 .rar 文件的存放目录（绝对路径）</param>
    /// <param name="rarName">将要解压缩的 .rar 文件名（包括后缀）</param>
    /// <returns>true 或 false。解压缩成功返回 true，反之，false。</returns>
    public bool UnRAR(string path, string rarPath, string rarName)
    {
        bool flag = false;
        string rarexe;
        RegistryKey regkey;
        Object regvalue;
        string cmd;
        ProcessStartInfo startinfo;
        Process process;
        try
        {
            regkey = Registry.ClassesRoot.OpenSubKey(WinRAR_KEY);
            regvalue = regkey.GetValue("");
            rarexe = regvalue.ToString();
            regkey.Close();
            rarexe = rarexe.Substring(1, rarexe.Length - 7);

            Directory.CreateDirectory(path);
            //解压缩命令，相当于在要压缩文件(rarName)上点右键->WinRAR->解压到当前文件夹
            cmd = string.Format("x {0} {1} -y",
                                rarName,
                                path);
            startinfo = new ProcessStartInfo();
            startinfo.FileName = rarexe;
            startinfo.Arguments = cmd;
            startinfo.WindowStyle = ProcessWindowStyle.Hidden;

            startinfo.WorkingDirectory = rarPath;
            process = new Process();
            process.StartInfo = startinfo;
            process.Start();
            process.WaitForExit();
            if (process.HasExited)
            {
                flag = true;
            }
            process.Close();
        }
        catch (Exception e)
        {
            throw e;
        }
        return flag;
    }
}