Run Batch File

Experts _ I am using the following code to execute a batch file based upon the batch files that are in a set directory. I am getting an error that I can't seem to figure out:

The directory name is invalid
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.ComponentModel.Win32Exception: The directory name is invalid

Source Error:

Line 47:
Line 48:         // Start the process
Line 49:         System.Diagnostics.Process proc = System.Diagnostics.Process.Start(psi);
Line 50:
Line 51:         // Open the batch file for reading

Here is my code:

using System;
using System.Data;
using System.IO;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;

public class Compiler : System.Web.UI.Page
    protected RadioButtonList ClassesToCompile;
    protected void Page_Load(object sender, EventArgs e)
        string BatchFileDir = @"C:\Documents and Settings\Administrator\Desktop\batch\";

        string[] dirFiles = Directory.GetFiles(BatchFileDir, "*.bat");

        int i = 0;

        foreach (string dirFile in dirFiles)
            string strDisplay = dirFile.Replace(BatchFileDir, "");
            ClassesToCompile.Items.Insert(i, new ListItem(strDisplay, dirFile));


    protected void page_selectClass(object sender, EventArgs e)
        string strSelectedClass = ClassesToCompile.SelectedValue;

        // Get the full file path
        string strFilePath = strSelectedClass;

        // Create the ProcessInfo object
        System.Diagnostics.ProcessStartInfo psi = new System.Diagnostics.ProcessStartInfo(@"c:\windows\system32\cmd.exe");
        psi.UseShellExecute = false;
        psi.RedirectStandardOutput = true;
        psi.RedirectStandardInput = true;
        psi.RedirectStandardError = true;
        psi.WorkingDirectory = "c:\\temp\\";

        // Start the process
        System.Diagnostics.Process proc = System.Diagnostics.Process.Start(psi);

        // Open the batch file for reading
        System.IO.StreamReader strm = System.IO.File.OpenText(strFilePath);

        // Attach the output for reading
        System.IO.StreamReader sOut = proc.StandardOutput;

        // Attach the in for writing
        System.IO.StreamWriter sIn = proc.StandardInput;

        // Write each line of the batch file to standard input
        while (strm.Peek() != -1)


        // Exit CMD.EXE
        string stEchoFmt = "# {0} run successfully. Exiting";

        sIn.WriteLine(String.Format(stEchoFmt, strFilePath));

        // Close the process

        // Read the sOut to a string.
        string results = sOut.ReadToEnd().Trim();

        // Close the io Streams;

        // Write out the results.
        string fmtStdOut = "<font face=courier size=0>{0}</font>";
        this.Response.Write(String.Format(fmtStdOut, results.Replace(System.Environment.NewLine, "<br>")));

        // reset radio button list
        ClassesToCompile.Items.FindByValue(strSelectedClass).Selected = false;

Any ideas on what I am missing? I have already set basic security access rights throughout the application. Thanks for your help...
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are you executing it from page?

I dont think you can do this from webpage.
clickclickbangAuthor Commented:
This is where I got the bulk of the code:

I would agree if it were a permissions problem, but why is it saying invalid directory?
if you notice then the batch file path given in the code of the link is temp folder path. But you are trying to execute a file from @"C:\Documents and Settings\Administrator\Desktop\batch\";.

Try to keep this file on server itself and see whether it is executing or not. or else you create on file at .bat in the temp folder and send input lines to it and then execute it.

Hope it will work.

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clickclickbangAuthor Commented:
I am going to keep trying it out. Thanks for your help!
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