解压缩c#

protected void btn_ServerClick(object sender, EventArgs e)
    {
        string strtxtPath = "E://Mailer";
        string strzipPath = "E://Mailer.zip";
        System.Diagnostics.Process Process1 = new System.Diagnostics.Process();
        Process1.StartInfo.FileName = "Winrar.exe";
        Process1.StartInfo.CreateNoWindow = true;

//// 1
        ////压缩c:/freezip/free.txt(即文件夹及其下文件freezip/free.txt)
        ////到c:/freezip/free.rar
        strzipPath = "E://Mailer.rar";//默认压缩方式为 .rar
        Process1.StartInfo.Arguments = " a -r /"" + strzipPath + "/" " + strtxtPath;

//// 2
        ////压缩c:/freezip/free.txt(即文件夹及其下文件freezip/free.txt)
        ////到c:/freezip/free.rar
        //strzipPath = "C://freezip//free";//设置压缩方式为 .zip
        //Process1.StartInfo.Arguments = " a -afzip " + strzipPath + " " + strtxtPath;

//// 3
        ////压缩c:/freezip/free.txt(即文件夹及其下文件freezip/free.txt)
        ////到c:/freezip/free.zip  直接设定为free.zip
        //Process1.StartInfo.Arguments = " a -r "+strzipPath+" " + strtxtPath ;

//// 4
        ////搬迁压缩c:/freezip/free.txt(即文件夹及其下文件freezip/free.txt)
        ////到c:/freezip/free.rar 压缩后 原文件将不存在
        //Process1.StartInfo.Arguments = " m " + strzipPath + " " + strtxtPath;

//// 5
        ////压缩c:/freezip/下的free.txt(即文件free.txt)
        ////到c:/freezip/free.zip  直接设定为free.zip 只有文件 而没有文件夹
        //Process1.StartInfo.Arguments = " a -ep " + strzipPath + " " + strtxtPath;

//// 6
        ////解压缩c:/freezip/free.rar
        ////到 c:/freezip/
        //strtxtPath = "E://";
        //Process1.StartInfo.Arguments = " x " + strzipPath + " " + strtxtPath;

//// 7
        ////加密压缩c:/freezip/free.txt(即文件夹及其下文件freezip/free.txt)
        ////到c:/freezip/free.zip  密码为123456 注意参数间不要空格
        //Process1.StartInfo.Arguments = " a -p123456 " + strzipPath + " " + strtxtPath;

//// 8
        ////解压缩加密的c:/freezip/free.rar
        ////到 c:/freezip/   密码为123456 注意参数间不要空格
        //strtxtPath = "c://freezip//";
        //Process1.StartInfo.Arguments = " x -p123456 " + strzipPath + " " + strtxtPath;

//// 9
        ////-o+ 覆盖 已经存在的文件
        //// -o- 不覆盖 已经存在的文件
        //strtxtPath = "c://freezip//";
        //Process1.StartInfo.Arguments = " x -o+ " + strzipPath + " " + strtxtPath;

////10
        //// 只从指定的zip中
        //// 解压出free1.txt
        //// 到指定路径下
        //// 压缩包中的其他文件 不予解压
        //strtxtPath = "c://freezip//";
        //Process1.StartInfo.Arguments = " x " + strzipPath + " " +" free1.txt" + " " + strtxtPath;

//// 11
        //// 通过 -y 对所有询问回应为"是" 以便 即便发生错误 也不弹出WINRAR的窗口
        //// -cl 转换文件名为小写字母
        //strtxtPath = "c://freezip//";
        //Process1.StartInfo.Arguments = " t -y -cl " + strzipPath + " " + " free1.txt";

Process1.Start();
        if (Process1.HasExited)
        {
            int iExitCode = Process1.ExitCode;
            if (iExitCode == 0)
            {
                Response.Write(iExitCode.ToString() + " 正常完成");
            }
            else
            {
                Response.Write(iExitCode.ToString() + " 有错完成");
            }
        }

}
    protected void btnTwo_ServerClick(object sender, EventArgs e)
    {
        bool result = Compress.Compress.Compression("E://Mailer//CP//MailerCP.sln");
        if (result)
        {
        }
        else
        {
            Response.Write(result.ToString());
        }
    }