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Run windows command without cmd.exe from C#

I am attempting to run a windows command (e.g. whoami) without calling cmd.exe (or powershell) directly using C#.
Within VB this is possible using CreateObject(WScript.Shell) it obviously does not have to be the same method as within the VB, although that would be nice, but I just do not want to call cmd.exe directly.
How would I be able to achieve this?

This runs a console program, waits for exit and reads the output. I changed the cmd to ping since that takes longer and I can verify no console window opens.
ProcessStartInfo startInfo = new ProcessStartInfo();
startInfo.FileName = "ping.exe";
startInfo.Arguments = "google.com";
startInfo.RedirectStandardOutput = true;
startInfo.UseShellExecute = false;
startInfo.CreateNoWindow = true;
// This wasn't needed
//startInfo.WindowStyle = ProcessWindowStyle.Hidden;
Process processTemp = new Process();
processTemp.StartInfo = startInfo;
processTemp.EnableRaisingEvents = true;
try
{
processTemp.Start();
textBox1.Text = processTemp.StandardOutput.ReadToEnd();
processTemp.WaitForExit();
}
catch (Exception ex)
{
textBox1.Text = ex.Message;
}

You could call whoami.exe and capture the output directly.
The key is UseShellExecute = false to run the executable directly.
var proc = new Process
{
StartInfo = new ProcessStartInfo
{
FileName = #$"{Environment.ExpandEnvironmentVariables("%systemroot%")}\system32\whoami.exe",
Arguments = // Put any command line arguments here
UseShellExecute = false,
RedirectStandardOutput = true,
CreateNoWindow = true
}
};
proc.Start();
string line = proc.StandardOutput.ReadToEnd();

running cmd in c# answer yes to prompt

I'm running the below command from c#. There is a prompt that will be shown that I want to answer "yes" to how can I do this with the current code
If I run this as a batch script I can just do
echo y | pscp.exe -batch -pw password E:\\Certs\\client.conf me#<ip>:/home/user
which works - but unsure how I can replicate this using the below
string pscpPath="-batch -pw password E:\\Certs\\client.conf me#<ip>:/home/user";
ExecuteCopyCerts("pscp.exe", pscpPath);
Function:
public Boolean ExecuteCopyCerts(string fileName, string arguments)
{
txtLiveHubStatus.Text = "";
try
{
System.Diagnostics.ProcessStartInfo procStartInfo = new System.Diagnostics.ProcessStartInfo(fileName, arguments);
procStartInfo.RedirectStandardOutput = true;
procStartInfo.UseShellExecute = false;
procStartInfo.CreateNoWindow = true;
System.Diagnostics.Process proc = new System.Diagnostics.Process();
proc.StartInfo = procStartInfo;
proc.Start();
string result = proc.StandardOutput.ReadToEnd();
return proc.ExitCode == 0;
}
}

Set RedirectStandardInput to true
procStartInfo.RedirectStandardInput = true
and then write to StandardInput
proc.StandardInput.WriteLine("yes");

To reiterate what Hesam said though the prompt is Y, not yes. This is the prompt for the cert, which only occurs on the first call to each new linux machine. I use this code today in one of our applications.
ProcessStartInfo psi = new ProcessStartInfo();
psi.FileName = "pscp";
psi.RedirectStandardInput = true;
psi.RedirectStandardOutput = false;
psi.Arguments = $"-r -p -pw {passWord} \"{localFileNamePath}\" {userName}#{hostName}:{remotePath}";
psi.UseShellExecute = false;
psi.CreateNoWindow = true;
using (Process process = new Process())
{
process.StartInfo = psi;
process.Start();
process.StandardInput.WriteLine("Y");
process.WaitForExit();
}

Run WinSat Command C#

I am trying to run cmd winsat -drive c programmatically
The code below is only returning "Windows System Assessment Tool" the first line of the output but is not letting the winsat run and return the rest of the output
I am looking for the entire output to be returned shown here
The code I am using is this
public string RunAndOutput(object command)
{
var procStartInfo =
new ProcessStartInfo("winsat", "/c " + "-drive c");
procStartInfo.RedirectStandardOutput = true;
procStartInfo.UseShellExecute = false;
procStartInfo.CreateNoWindow = true;
var proc = new Process();
proc.StartInfo = procStartInfo;
proc.Start();
string result = proc.StandardOutput.ReadToEnd();
proc.WaitForExit(); // Wait for everything to finish
return result;
}

You will need to wait for the process to exit using WaitForExit(), like this:
public string RunAndOutput(object command)
{
var procStartInfo =
new ProcessStartInfo("cmd", "/c " + command);
procStartInfo.RedirectStandardOutput = true;
procStartInfo.UseShellExecute = false;
procStartInfo.CreateNoWindow = true;
var proc = new Process();
proc.StartInfo = procStartInfo;
proc.Start();
string result = proc.StandardOutput.ReadToEnd();
proc.WaitForExit(); // Wait for everything to finish
return result;
}

How to use wevtutil.exe command lines in a Process?

This is two functions im using the wevtutil in both functions this arguments worked in a bat file but not working here i cant find any of the text files created in the contentDirectory.
Something is wrong with the Arguments i guess.
private void SystemEvents()
{
Process proc = new Process();
proc.EnableRaisingEvents = true;
proc.StartInfo.UseShellExecute = false;
proc.StartInfo.FileName = "cmd.exe";
proc.StartInfo.CreateNoWindow = true;
proc.StartInfo.WorkingDirectory = contentDirectory;
proc.StartInfo.Arguments = "wevtutil qe system /rd:true /f:text> eventsys.txt";
proc.Start();
proc.WaitForExit();
proc.Close();
}
private void AppEvents()
{
Process proc = new Process();
proc.EnableRaisingEvents = true;
proc.StartInfo.UseShellExecute = false;
proc.StartInfo.FileName = "cmd.exe";
proc.StartInfo.CreateNoWindow = true;
proc.StartInfo.WorkingDirectory = contentDirectory;
proc.StartInfo.Arguments = "wevtutil qe application /rd:true /f:text> eventapp.txt";
proc.Start();
proc.WaitForExit();
proc.Close();
}
What is wrong with the arguments ?

your cmd.exe is missing a /c agument. type cmd.exe /? in a termainal for more info.
you could just change the Arg line too:
proc.StartInfo.Arguments = "/c wevtutil qe application /rd:true /f:text";
but really I guess you want to do something like this instead.
Process proc = new Process();
proc.EnableRaisingEvents = true;
proc.StartInfo.UseShellExecute = false;
proc.StartInfo.FileName = "wevtutil";
proc.StartInfo.CreateNoWindow = true;
proc.StartInfo.Arguments = "qe application /rd:true /f:text";
Then redirect stdout/stderr to allow you to process the output in C#.

Run EXE from Windows From pass in static inputs

currently I have a process that runs, but it requires the user to enter
y <return>
<return>
The code I am using is as follows
ProcessStartInfo psi = new ProcessStartInfo();
string exepath = Directory.GetParent(System.Reflection.Assembly.GetExecutingAssembly().Location).ToString();
Process proc = new Process();
psi.FileName = exepath + #"\lib\dnaml";
psi.RedirectStandardInput = true;
psi.Arguments = "y\r \r";
psi.UserShellExecute = true;
proc.StartInfo = psi;
proc.Start();
proc.WaitForExit();
I want to hard type these inputs in. Any suggestions? Thanks

The Arguments property corresponds to the command-line, not data entered via standard input.
The RedirectStandardInput property is part of the puzzle. Then you also need to write to the stream connected to the StandardInput property. Also note that standard input redirection is incompatible with ShellExecute, it needs CreateProcess to work. So set UseShellExecute = false.
psi.RedirectStandardInput = true;
psi.UseShellExecute = false;
proc.StartInfo = psi;
proc.Start();
proc.StandardInput.WriteLine("y ");
proc.StandardInput.WriteLine();
proc.WaitForExit();