crack some program use c#

Today i found crack for WTFAST Program

i decode and got source code

 File.WriteAllBytes(this.TextBox1.Text + "\\zozts.bat", Resources.WSMedz);
            string path = Environment.ExpandEnvironmentVariables("%WinDir%") + "\System32\drivers\etc\hosts";
            File.GetAttributes(path);
            File.SetAttributes(path, FileAttributes.Normal);
            Process process = Process.Start(new ProcessStartInfo
            {
                WindowStyle = ProcessWindowStyle.Hidden,
                FileName = this.TextBox1.Text + "\\zozts.bat",
                Arguments = string.Empty
            });
            process.WaitForExit();
            File.WriteAllBytes(this.TextBox1.Text + "\\WTFast.exe", Resources.WTFast);
            File.Delete(this.TextBox1.Text + "\\zozts.bat");
            Interaction.MsgBox("WTFast Beta is succesfully cracked !", MsgBoxStyle.OkOnly, null);

this resources WSMedz and WTFAST is give me null >> i don't understand what they do !!! if i know i will crack the last version of WTFAST !!!

WSMedz and WTFAST = MemoryStream

    inteal static byte[] WSMedz
    {
        get
        {
            object objectValue = ResourceManager.GetObject("WSMedz", resourceCulture);
            retu (byte[])objectValue;
        }
    }
  inteal static byte[] WTFast
    {
        get
        {
            object objectValue = ResourceManager.GetObject("WTFast", resourceCulture);
            retu (byte[])objectValue;
        }
    }

thanks