Develop Reference

Run CMD command

I am trying to run the below code and expect to get a file with the name abc.txt with Dir information. I get the Command prompt but the commands are not running.
There are lot's of questions in StackOverFlow which discuss this, but nothing mentioned there is either required or works.
ProcessStartInfo info = new ProcessStartInfo();
info.FileName = "cmd.exe";
info.RedirectStandardInput = true;
info.UseShellExecute = false;
Process p = Process.Start(info);
if (p.StandardInput.BaseStream.CanWrite)
{
p.StandardInput.WriteLine("dir >>c:\abc.txt");
}

You have to escape your "\" in the sw.WriteLine for c:\
just add a # before like this:
sw.WriteLine(#"dir >>c:\abc.txt");
Consider: You may have to run aour application under an elevated administrative context to write to c:\abc.txt

Why is auditpol not applying the local policy settings from C#?

I'm setting local auditing policies from a C# .NET program that reads settings from a file then uses Process.Start() with 'cmd' to execute the commands. This way has worked in the past for everything that I've needed it to do (including this exact situation), but recently it's just started to mysteriously fail to set the policies.
Here's the code: (command is of the form "auditpol /set /subcategory:"blah" /success:enable")
ProcessStartInfo procStartInfo = new ProcessStartInfo("cmd", "/c " + command);
procStartInfo.RedirectStandardOutput = true;
procStartInfo.RedirectStandardError = true;
procStartInfo.UseShellExecute = false;
procStartInfo.CreateNoWindow = true;
Process proc = new Process();
proc.StartInfo = procStartInfo;
proc.Start();
proc.WaitForExit();
string result = proc.StandardOutput.ReadToEnd();
string error = proc.StandardError.ReadToEnd();
In debug in VS2013 it's applying the policies just fine and even on the same computer in the full on .exe it's applying just fine, but when it gets transferred to another computer it will not set the policies from the auditpol command. Anyone have any ideas what could be happening?

Working with the command prompt in C#

I am working on a project of remotely receiving commands from a server, but I am facing a problem when working with the command prompt locally. Once I get it working locally, then I will move to remote communication.
Problem:
I have to completely hide the console, and client must not see any response when the client is working with the command line but it will show a console for a instance and then hide it.
I had to use c# to send a command to cmd.exe and receive the result back in C#. I have done it in one way by setting the StandardOutput... and input to true.
The commands are not working. For example, D: should change the directory to D and it does, but after that, if we use dir to see the directories in D, it does not show the appropriate directories.
Here is my code:
First Method
Process process = new Process();
ProcessStartInfo startInfo = new ProcessStartInfo();
startInfo.WindowStyle = ProcessWindowStyle.Hidden;
startInfo.FileName = "cmd.exe";
startInfo.Arguments = "/C " + textBoxInputCommand.Text + " >> " + " system";
process.StartInfo = startInfo;
process.Start();
Second Method
ProcessStartInfo procStartInfo = new ProcessStartInfo("cmd", "/c " + textBoxInputCommand.Text);
procStartInfo.WorkingDirectory = #"c:\";
procStartInfo.RedirectStandardOutput = true;
procStartInfo.UseShellExecute = true;
procStartInfo.UseShellExecute = false;
Process proc = new Process();
proc.StartInfo = procStartInfo;
proc.Start();
string result = proc.StandardOutput.ReadToEnd();
richTextBoxCommandOutput.Text += result;
I want the program to run as administrator because the exe it generates does not run commands when it runs from the C drive.

Try not to run the commands by passing them to cmd instead write the commands passed by the client to a.bat file execute the .bat. file from your program this will probably hide your command prompt window.
You can also use process.OutputDataRecieved event handler to do anything with the output.
If you want to execute command using administrator rights you can use runascommand. It is equivalent to the sudo command in Linux. Here is a piece of code may be it will help you
var process = new Process();
var startinfo = new ProcessStartInfo(#"c:\users\Shashwat\Desktop\test.bat");
startinfo.RedirectStandardOutput = true;
startinfo.UseShellExecute = false;
process.StartInfo = startinfo;
process.OutputDataRecieved += DoSomething;
process.Start();
process.BeginOutputReadLine();
process.WaitForExit();
//Event Handler
public void DoSomething(object sener, DataReceivedEventArgs args)
{
//Do something
}
Hope it helps you.

You could hide command prompt window by adding this line of code:
startInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
or do not create it at all
startInfo.CreateNoWindow = true;
Here can be found a few awarding solutions:
Run Command Prompt Commands

Log Process execution

I am trying to restart a windows service from the same windows service with this piece of code
var proc = new Process();
var psi = new ProcessStartInfo();
psi.CreateNoWindow = true;
psi.FileName = "cmd.exe";
psi.Arguments = "/C net stop \"EmailService-3.1.0\ && net start \"EmailService-3.1.0\"";
psi.LoadUserProfile = false;
psi.UseShellExecute = false;
psi.WindowStyle = ProcessWindowStyle.Hidden;
proc.StartInfo = psi;
It is not working and I have no idea why, is there anything I can do to log or determine what is happening or get the output of what is happening when the net stop command is called?

You can redirect the output of the net stop command, but as per TomT's comment, this seems a very roundabout way to restart a service.
psi.Arguments = "/C net stop \"EmailService-3.1.0\" > C:\\svclog.txt "; //&& net start \"EmailService-3.1.0\"";

I can see a missing quotation mark after the name of your service in the stop command. Otherwise it can be a permission issue. Maybe the user with whom your service has logged in does not have enough privileges to stop a service.

connect compmgmnt.msc to remote host using c#

how can i use compmgmnt.msc to remote host using c#.
i found this...
execute this command in "cmd.exe" it is working and ask you for The password:
/user:administrator \"mmc.exe compmgmt.msc /computer:IZADI-PC\
but i need to know how can i use this command in c#.
i also need to pass the password to this command using c#.
i have username and password of the remote computer and i wanna do everything programatically.
I also visited :
http://www.lansweeper.com/forum/yaf_postst5116_Runas-Custom-Actions.aspx
Process.Start with different credentials with UAC on
Thank you in advanced!!!
anyone write sample code to excecute /user:administrator \"mmc.exe compmgmt.msc /computer:IZADI-PC\ in c#

ProcessStartInfo startInfo = new ProcessStartInfo();
Process myprocess = new Process();
myprocess.StartInfo.CreateNoWindow = true;
myprocess.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
myprocess.StartInfo.UseShellExecute = false;
myprocess.StartInfo.Verb = "runas";
myprocess.StartInfo.FileName = "cmd.exe";
myprocess.StartInfo.UserName = "administrator";
myprocess.StartInfo.Password = MakeSecureString("123456");
myprocess.StartInfo.Arguments = "/k mmc.exe compmgmt.msc /computer:PC135-PC";
myprocess.Start();
myprocess.Close();