Develop Reference

running a JScript file in cmd.exe by a button

I have a button in my form that when its clicked, it will open command prompt and automatically run a javascript file. My code so far only opens the command prompt. How do you run a javascript file?
Process process = new Process();
process.StartInfo.FileName = #"C:\windows\system32\cmd.exe";
process.Start();

Now that we know that you're trying to launch a Node.js app, try this new version.
And don't forget that C# is pretty well documented on MSDN.
If the rest of your code is working as is, and you don't actually want/need to run CMD.exe, this should do the trick:
Process process = new Process();
process.StartInfo.FileName = #"C:\Program Files\nodejs\node.exe";
process.StartInfo.Arguments = #"P:\ath\To\Your\File.js";
process.Start();
As a holdover from the original question: If you had been trying to launch a JScript script, you would want to use #"C:\Windows\System32\Cscript.exe", or if you want to launch a JScript script without seeing a command prompt window, replace Cscript with Wscript.

Try this:
process.StartInfo.FileName = #"C:\windows\system32\cmd.exe";
process.StartInfo.RedirectStandardInput = true;
process.StartInfo.UseShellExecute = false;
process.Start();
process.StandardInput.WriteLine("Cscript.exe \"PathToYourFile\\file.js\"");
//OR
//process.StandardInput.WriteLine("Wscript.exe \"PathToYourFile\\file.js\"");
process.StandardInput.Flush();
process.StandardInput.Close();

Visual Studio x86 tools, normal cmd.exe, Process.Start()

I need to write some code to invoke tesseract OCR in C#. I installed it and use the follow code. But it doesn't work:
ProcessStartInfo startInfo = new ProcessStartInfo();
startInfo.FileName = "cmd.exe";
startInfo.WorkingDirectory = tempDir.FullName;
// doesn't work
startInfo.Arguments = string.Format("/C tesseract {0} {1}", imgName, textName);
// this works
//startInfo.Arguments = string.Format("/C copy {0} {1}", imgName, textName);
Process p = new Process();
p.StartInfo = startInfo;
p.Start();
p.WaitForExit();
p.Close();
No exception or error is thrown. I just can't get the output file in the directory. I try a built-in command like the copy which commented and it works. I tried to get the stdout of the process but it always throw a "Process exit" exception.
After that I try to call tesseract in a command window. I cd into the temp dir, run tesseract img.png output and here the interest thing happens:
When start the command window via Start->Run->cmd, it works fine.
When start the command window in Visual Studio solution explorer, right click-> Open Command Prompt (It's a feature of VS Productivity Power Tools), it shows "tesseract is not recognized as an internal or external command".
I check the PATH in environment variable, it is correct. The only difference I can see is that the VS prompt shows "Setting environment for using Microsoft Visual Studio 2010 x86 tools." on the top. Doesn't it search the PATH variable to find command? Aren't they the same thing? Is it somehow related to my C# code's failure?
My OS is Windows Server 2008 64-bit.

I used it differently, as follows:
Process p = new Process();
// Redirect the output stream of the child process.
p.StartInfo.UseShellExecute = false;
p.StartInfo.CreateNoWindow = true;
p.StartInfo.RedirectStandardOutput = true;
p.StartInfo.RedirectStandardError = true;
p.StartInfo.FileName = "tesseract.exe";
p.StartInfo.Arguments = string.Format("\"{0}\" \"{1}\" -l {2} -psm {3} {4}", imageFile, outputFileName, language, PageSegMode, Hocr ? "hocr" : string.Empty);
p.Start();
p.WaitForExit();
if (p.ExitCode == 0)
{
// read output text file
}
p.Close();

how to hide windows host script c#.net

I need hide hide Windows host script after this code:
System.Diagnostics.Process process = new System.Diagnostics.Process();
System.Diagnostics.ProcessStartInfo startInfo = new System.Diagnostics.ProcessStartInfo();
startInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
startInfo.FileName = "cmd.exe";
startInfo.Arguments = "/C slmgr.vbs /dlv";
process.StartInfo = startInfo;
process.Start();
Does anyone know how I could do this?

If you are talking about just hiding the window completely then you are missing setting the CreateNoWindow property.
startInfo.CreateNoWindow = true;
Instead of firing up an additional command-prompt, use cscript.exe to execute your VB script. If you do it this way you won't have to worry about the shell figuring out how to execute you vbs file and you won't get an additional command-line window.
startInfo.FileName = "cscript.exe";
startInfo.Arguments = "slmgr.vbs /dlv";
If the executable that is creating this process is not in the same directory as slmgr.vbs, you'll also need to set the full path to the file in the arguments, or set the working directory that the process runs in.
// Example path where your scripts could reside.
startInfo.WorkingDirectory = #"C:\PathToMyScripts\VBScripts\";
You probably want to redirect the output as well so you can log it somewhere.

Thank You for mr.BrutalDev
the second step
change startInfo.Arguments = "slmgr.vbs /dlv";
to startInfoent.Arguments = "C:\\Windows\\System32\\slmgr.vbs /dlv";

Windows defrag is not recognized as an internal or external command, operable program or batch file

I'm working on making a tech-toolkit program, and included in this 'toolkit' will be a button which runs a defrag on the local disk. Currently the batch file I've made for this is simple, it just runs a basic fragmentation analysis:
defrag C: /A
The C# code behind the button that triggers this is:
System.Diagnostics.ProcessStartInfo procInfo =
new System.Diagnostics.ProcessStartInfo();
procInfo.Verb = "runas";
procInfo.FileName = "(My Disk):\\PreDefrag.bat";
System.Diagnostics.Process.Start(procInfo);
This code does exactly what I want, it calls UAC then launches my batch file with Administative Privledges. Though once the batch file is ran, the output I recieve to the command console is:
C:\Windows\system32>defrag C: /A
'defrag' is not recognized as an internal or external command,
operable program or batch file.
What causes this Error and how do I fix it?

Check to make sure your defrag.exe file actually exists in C:\Windows\System32.
Try fully qualifying the 'defrag' command as:
C:\WINDOWS\system32\defrag.exe C: /A
Open up a cmd prompt and run this command: defrag.exe /? and post in the question what you get.

First of all: set yout project Platform Target property to Any CPU and untick the Prefer 32-bit option (99,9% this is the issue). Then... why starting a batch that invokes the command when you can just do this?
ProcessStartInfo info = new ProcessStartInfo();
info.Arguments = "/C defrag C: /A";
info.FileName = "cmd.exe";
info.UseShellExecute = false;
info.Verb = "runas";
info.WindowStyle = ProcessWindowStyle.Hidden;
Process.Start(info);
Works like a charm on my machine. For multiple commands:
ProcessStartInfo info = new ProcessStartInfo();
info.FileName = "cmd.exe";
info.RedirectStandardInput = true;
info.UseShellExecute = false;
Process cmd = Process.Start(info);
using (StreamWriter sw = p.StandardInput)
{
if (sw.BaseStream.CanWrite)
{
sw.WriteLine(command1);
sw.WriteLine(command2);
// ...

Permission issues when running JScript from C# Console application

I'm trying to run a Jscript task from a C# console application.
The Jscipt file is not mine so I can't change it. The script moves some files and this is what is causing the issues.
When I run the script manually, i.e. form the shell it executes correctly. When I try and run the script from my console application the bulk of the process runs but I get a ":Error = Permission denied" error when it tries to move the files.
I've tried every permutation of the Diagnostics.Process class that I can think of but I've had no luck.
My current code:
Process process = new Process();
process.StartInfo.WorkingDirectory = Path.GetDirectoryName((string)path);
process.StartInfo.FileName = #"cmd.exe";
process.StartInfo.Arguments = "/C " + (string)path;
process.StartInfo.UseShellExecute = false;
process.StartInfo.Verb = "runas";
process.StartInfo.LoadUserProfile = true;
process.StartInfo.Domain = "admin";
process.StartInfo.UserName = #"cardax_sync_test";
process.StartInfo.Password = GetSecureString("abc123");
process.Start();
process.WaitForExit();
Any ideas?
Thanx

Rookie Mistake!
I forgot to close the text reader that creates one of the input files for the jscript.
I'll submit this question for deletion when it get's old enough. Don't want more useless info clogging up the net!