$ErrorActionPreference = 'SilentlyContinue'
  
  if (-not $args) {
      Write-Host "Starting MAS..." -ForegroundColor Green
  }
  
  & {
      $psv = (Get-Host).Version.Major
      
      if ($ExecutionContext.SessionState.LanguageMode.value__ -ne 0) {
          Write-Host "PowerShell is not running in Full Language Mode."
          return
      }
  
      $URLs = @(
          'https://raw.githubusercontent.com/jianyun-wu/Microsoft-Activation-Scripts/refs/heads/master/MAS/All-In-One-Version-KL/MAS_AIO.cmd',
          'https://r2.getwin.wjy.im/MAS_AIO.cmd'
      )
  
      try { [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12 } catch {}
  
      $response = $null
      
      foreach ($URL in $URLs) {
          try {
              if ($psv -ge 3) {
                  $response = Invoke-RestMethod $URL -UseBasicParsing
              }
              else {
                  $w = New-Object Net.WebClient
                  $response = $w.DownloadString($URL)
              }
              if ($response) { break }
          }
          catch {}
      }
  
      if (-not $response) {
          Write-Host "Failed to retrieve MAS file!" -ForegroundColor Red
          return
      }
  
      $paths = "HKCU:\SOFTWARE\Microsoft\Command Processor", "HKLM:\SOFTWARE\Microsoft\Command Processor"
      foreach ($path in $paths) { 
          if (Get-ItemProperty -Path $path -Name "Autorun" -ErrorAction SilentlyContinue) { 
              Write-Warning "Autorun registry found, CMD may crash!"
          } 
      }
  
      $rand = [Guid]::NewGuid().Guid
      $isAdmin = [bool]([Security.Principal.WindowsIdentity]::GetCurrent().Groups -match 'S-1-5-32-544')
      $FilePath = if ($isAdmin) { "$env:SystemRoot\Temp\MAS_$rand.cmd" } else { "$env:USERPROFILE\AppData\Local\Temp\MAS_$rand.cmd" }
      
      Set-Content -Path $FilePath -Value "@::: $rand `r`n$response"
  
      if ($psv -lt 3) {
          $p = Start-Process -FilePath "$env:SystemRoot\system32\cmd.exe" -ArgumentList "/c """"$FilePath"" -el -qedit $args""" -Verb RunAs -PassThru
          $p.WaitForExit()
      }
      else {
          Start-Process -FilePath "$env:SystemRoot\system32\cmd.exe" -ArgumentList "/c """"$FilePath"" -el $args""" -Wait -Verb RunAs
      }   
      
      Remove-Item -Path $FilePath -ErrorAction SilentlyContinue
  } @args