MaiTouchSensorEmulator/VirtualComPortManager.cs

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

namespace WpfMaiTouchEmulator
{
    class VirtualComPortManager
    {
        public Task<string> CheckInstalledPortsAsync()
        {
            return ExecuteCommandAsync("C:\\Program Files (x86)\\com0com\\setupc.exe", $"list");
        }

        public Task<string> InstallComPort()
        {
            return ExecuteCommandAsync("C:\\Program Files (x86)\\com0com\\setupc.exe", $"install PortName=COM3 PortName=COM23");
        }

        public Task<string> UninstallVirtualPorts()
        {
            return ExecuteCommandAsync("C:\\Program Files (x86)\\com0com\\setupc.exe", $"uninstall");
        }

        private async Task<string> ExecuteCommandAsync(string command, string arguments)
        {
            var processStartInfo = new ProcessStartInfo
            {
                FileName = command,
                Arguments = arguments,
                UseShellExecute = false,
                RedirectStandardOutput = true,
                RedirectStandardError = true,
                CreateNoWindow = true,
                WorkingDirectory = "C:\\Program Files (x86)\\com0com"
            };

            var outputBuilder = new StringBuilder();
            using (var process = new Process { StartInfo = processStartInfo })
            {
                process.OutputDataReceived += (sender, args) =>
                {
                    if (args.Data != null)
                        outputBuilder.AppendLine(args.Data);
                };
                process.ErrorDataReceived += (sender, args) =>
                {
                    if (args.Data != null)
                        outputBuilder.AppendLine(args.Data);
                };

                process.Start();
                process.BeginOutputReadLine();
                process.BeginErrorReadLine();

                await process.WaitForExitAsync();

                return outputBuilder.ToString();
            }
        }
    }
}