直接调用WINR
public void RARsave(string patch,string rarPatch,string rarName)
         {
            String the_rar;
            RegistryKey the_Reg;
            Object the_Obj;
            String the_Info;
            ProcessStartInfo the_StartInfo;
            Process the_Process;
            try
             {
                the_Reg = Registry.ClassesRoot.OpenSubKey(@"ApplicationsWinRAR.exeShellOpenCommand");
                the_Obj = the_Reg.GetValue("");
                the_rar = the_Obj.ToString();
                the_Reg.Close();
                the_rar = the_rar.Substring(1, the_rar.Length - 7);
                Directory.CreateDirectory(patch);
                //命令参数
                //the_Info = " a    " + rarName + "  " + @"C:Test?70821.txt"; //文件压缩
                the_Info = " a    " + rarName + "  " + patch + "  -r"; ;
                the_StartInfo = new ProcessStartInfo();
                the_StartInfo.FileName = the_rar;
                the_StartInfo.Arguments = the_Info;
                the_StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
                //打包文件存放目录
                the_StartInfo.WorkingDirectory = rarPatch;
                the_Process = new Process();
                the_Process.StartInfo = the_StartInfo;
                the_Process.Start();
                the_Process.WaitForExit();
                the_Process.Close();
            }
            catch (Exception ex)
             {
                throw ex;
            }
        } 
    public string unRAR(string unRarPatch,string rarPatch,string rarName)
     {
        String the_rar;
        RegistryKey the_Reg;
        Object the_Obj;
        String the_Info;
        ProcessStartInfo the_StartInfo;
        Process the_Process;
        try
         {
            the_Reg = Registry.ClassesRoot.OpenSubKey(@"ApplicationsWinRAR.exeShellOpenCommand");
            the_Obj = the_Reg.GetValue("");
            the_rar = the_Obj.ToString();
            the_Reg.Close();
            the_rar = the_rar.Substring(1, the_rar.Length - 7);
            Directory.CreateDirectory(Server.MapPath(unRarPatch));
            the_Info = "e   " + rarName + "  " + Server.MapPath(unRarPatch) + " -y";
            the_StartInfo = new ProcessStartInfo();
            the_StartInfo.FileName = the_rar;
            the_StartInfo.Arguments = the_Info;
            the_StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
            the_StartInfo.WorkingDirectory = Server.MapPath(rarPatch);//获取压缩包路径
            the_Process = new Process();
            the_Process.StartInfo = the_StartInfo;
            the_Process.Start();
            the_Process.WaitForExit();
            the_Process.Close();
        }
        catch (Exception ex)
         {
            throw ex;
        }
        return Server.MapPath(unRarPatch);
    }