调用WinRAR解压文件

首先引用两个命名空间

using System.Diagnostics;
using Microsoft.Win32;

下面是调用WinRAR的函数，首先是在注册表里面去查找WinRAR的注册表键值，然后用WinRAR的命令去完成解压。

/// <summary>
        /// 解压文件
        /// </summary>
        /// <param name="fileDirectory">解压的文件目录</param>
        /// <param name="filePath">压缩包的文件路径</param>
        private bool DecompressFile(string fileDirectory, string rarFilePath)
        {
            bool flag = false;
      
            RegistryKey regkey = Registry.ClassesRoot.OpenSubKey(@"Applications\WinRAR.exe\shell\open\command");
            Object regvalue = regkey.GetValue("");
            string rarExe = regvalue.ToString();
            regkey.Close();
            rarExe = rarExe.Substring(1, rarExe.Length - 7);

            Directory.CreateDirectory(fileDirectory);
            string cmd = string.Format("x {0} {1} -y", rarFilePath, fileDirectory);
           
            ProcessStartInfo startInfo = new ProcessStartInfo();
            startInfo.FileName = rarExe;
            startInfo.Arguments = cmd;
            startInfo.WindowStyle = ProcessWindowStyle.Hidden;
            startInfo.WorkingDirectory = fileDirectory;

            Process process = new Process();
            process.StartInfo = startInfo;
            process.Start();
            process.WaitForExit();
            if (process.HasExited)
            {
                flag = true;
            }
            process.Close();

            return flag;
        }