Simple service that whitelists nvcontainer process responsible for XBOX controller emulation for NVIDIA Shield Controller

HidGuardianHelper.cs

//
// Simple service that whitelists nvcontainer process responsible for XBOX controller emulation for NVIDIA Shield Controller
//
// Copyright (c) 2020 Adam Strzelecki
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
// Usage:
//
// C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe .\HidGuardianHelper.cs
// New-Service -Name HidGuardianHelper -DependsOn NvContainerLocalSystem -BinaryPathName $PWD\HidGuardianHelper.exe -DisplayName HidGuardianHelper -Description "HID Guardian Helper Service" -StartupType Automatic
// Start-Service HidGuardianHelper
// sc.exe delete HidGuardianHelper
// ls HKLM:\SYSTEM\CurrentControlSet\Services\HidGuardian\Parameters\Whitelist

using System;
using System.ServiceProcess;
using System.Diagnostics;
using Microsoft.Win32;

namespace HidGuardian {
  public partial class Service: ServiceBase {
    protected override void OnStart(string[] args) {
      base.OnStart(args);
      using (RegistryKey key = Registry.LocalMachine.OpenSubKey(@"SYSTEM\CurrentControlSet\Services\HidGuardian\Parameters\Whitelist", true)) {
        foreach(string subKeyName in key.GetSubKeyNames()) {
          key.DeleteSubKeyTree(subKeyName);
        }
        foreach (Process process in Process.GetProcessesByName("nvcontainer")) {
          key.CreateSubKey(process.Id.ToString());
        }
      }
    }
  }
  static class Program {
    static void Main() {
      ServiceBase.Run(new ServiceBase[] { new Service() } );
    }
  }
}