Paint 3D open with

// 2>NUL&@ECHO OFF&CLS&GOTO batch
/*
:batch
FOR /F "tokens=* USEBACKQ" %%F IN (`REG QUERY "HKLM\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full" /v InstallPath`) DO SET "InstallPath=%%F"
SET InstallPath=%InstallPath:*REG_SZ =%
FOR /F "tokens=* Eol= " %%F IN ("%InstallPath%") DO SET "InstallPath=%%F"
IF EXIST "%InstallPath%csc.exe" ("%InstallPath%csc.exe" /out:"%~dp0\Paint3D.exe" /target:winexe "%~dpnx0" /lib:%InstallPath%WPF /r:UIAutomationTypes.dll,UIAutomationClient.dll) ELSE (ECHO ERROR - Missing csc.exe)
PAUSE&EXIT
*/

using System;
using System.Diagnostics;
using System.Linq;
using System.Runtime.InteropServices;
using System.Threading;
using System.Windows.Automation;
using System.Windows.Forms;

class Program
{

  [DllImport("user32.dll")]
  private static extern void keybd_event(byte bVk, byte bScan, int dwFlags, int dwExtraInfo);

  private const int KEYEVENTF_EXTENDEDKEY = 1;
  private const int KEYEVENTF_KEYUP = 2;

  public static void KeyDown(Keys vKey)
  {
    keybd_event((byte)vKey, 0, KEYEVENTF_EXTENDEDKEY, 0);
  }

  public static void KeyUp(Keys vKey)
  {
    keybd_event((byte)vKey, 0, KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP, 0);
  }

  private static void OnWindowOpened(object sender, AutomationEventArgs automationEventArgs)
  {
    try
    {
      var element = sender as AutomationElement;
      if (element != null && Process.GetProcessById(element.Current.ProcessId).MainModule.FileName ==
            Environment.GetFolderPath(Environment.SpecialFolder.System)+"\\ApplicationFrameHost.exe")
      {
        WindowPattern windowPattern = null;
        windowPattern = element.GetCurrentPattern(WindowPattern.Pattern) as WindowPattern;
        if (windowPattern.WaitForInputIdle(5000))
        {
          System.Threading.Thread.Sleep(3000);
          KeyDown(Keys.LControlKey);
          KeyDown(Keys.O);
          KeyUp(Keys.O);
          KeyUp(Keys.LControlKey);
          System.Threading.Thread.Sleep(500);
          KeyDown(Keys.Space);
          KeyUp(Keys.Space);
          System.Threading.Thread.Sleep(1500);
          KeyDown(Keys.LControlKey);
          KeyDown(Keys.V);
          KeyUp(Keys.V);
          KeyUp(Keys.LControlKey);
          KeyDown(Keys.Enter);
          KeyUp(Keys.Enter);
        }
      }
    }
    catch (ElementNotAvailableException)
    {
    }
  }

  [STAThread]
  static void Main(string[] args)
  {
    if (args.Length == 1)
    {
      Clipboard.SetText(args[0]);
      System.Windows.Automation.Automation.AddAutomationEventHandler(
        eventId: WindowPattern.WindowOpenedEvent,
        element: AutomationElement.RootElement,
        scope: TreeScope.Children,
        eventHandler: OnWindowOpened);
      var p1 = "Software\\Classes\\Local Settings\\Software\\Microsoft\\Windows\\CurrentVersion\\AppModel\\Repository\\Packages\\";
      var p2 = Microsoft.Win32.Registry.CurrentUser.OpenSubKey(p1).GetSubKeyNames().Where(s => s.StartsWith("Microsoft.MSPaint_")).FirstOrDefault();
      var p3 = Microsoft.Win32.Registry.CurrentUser.OpenSubKey(p1 + p2).GetValue("PackageRootFolder");
      Process.Start(p3 + "\\PaintStudio.View.exe");
      System.Threading.Thread.Sleep(15000);
      Automation.RemoveAllEventHandlers();
    }
  }
}