Running a .exe application from Windows Forms

You need to use the Process class:

Process.Start(@"C:\some_location\myapplication.exe");

For arguments:

ProcessStartInfo startInfo = new ProcessStartInfo();
startInfo.FileName = @"C:\some_location\myapplication.exe";
startInfo.Arguments = "header.h";
Process.Start(startInfo);

Obviously you can pull these names/arguments from text boxes.

You can try with this code:

ProcessStartInfo startInfo = new ProcessStartInfo("yourExecutable.exe");

startInfo.Arguments = "header.h"; // Your arguments

Process.Start(startInfo);