Process

wProc.cs

using System;
using System.Linq;
using System.Text;
using System.Diagnostics;
using System.Collections.Generic;

public class WProc
{
 public WProc() {
 }

 public string run(string fileName) {
  System.Diagnostics.Process proc = new System.Diagnostics.Process();
  proc.StartInfo.FileName = fileName; //@"C:\Users\Vitor\ConsoleApplication1.exe";
  proc.StartInfo.Arguments = "olaa"; //argument
  proc.StartInfo.UseShellExecute = false;
  proc.StartInfo.RedirectStandardOutput = true;
  proc.StartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
  proc.StartInfo.CreateNoWindow = true; //not diplay a windows
  proc.Start();
  string output = proc.StandardOutput.ReadToEnd(); //The output result
  proc.WaitForExit();
  return output;
 }
 
 public void execute(string fileName) {
  Process proc = new Process();
  proc.StartInfo.FileName = fileName; //"Notepad.exe";
  //proc.StartInfo.WindowStyle = ProcessWindowStyle.Maximized;
  proc.Start();
  proc.WaitForExit(); 
  
  //System.Diagnostics.Process.Start("calc.exe"); 
 }
}