readme.md

Usage After Installation

1. Open a new Command Prompt or PowerShell to ensure your updated PATH is recognized.
2. Navigate to the folder where you want to save the file (e.g., cd D:\Downloads).
3. Run:

   aria2c https://example.com/large-file.iso

4. The file will download in the current directory, using the default settings from aria2.conf (10 connections, resume, etc.).

Enjoy faster downloads with aria2!

install_aria2.ps1

<#
.SYNOPSIS
  Installs aria2 on Windows, sets up default configuration, and adds to PATH.

.DESCRIPTION
  - Creates the folder C:\Tools\aria2.
  - Downloads aria2 64-bit (version 1.36.0).
  - Extracts all files into C:\Tools\aria2.
  - Creates aria2.conf with default settings (resume, 10 connections, etc.).
  - Adds C:\Tools\aria2 to the user PATH.
#>

[CmdletBinding()]
param()

Write-Host "`n=== Starting aria2 installation... ===`n"

# 1) Create the target folder if it doesn't exist
$destFolder = "C:\Tools\aria2"
if (!(Test-Path $destFolder)) {
    New-Item -ItemType Directory -Force -Path $destFolder | Out-Null
    Write-Host "Created folder: $destFolder"
} else {
    Write-Host "Folder already exists: $destFolder"
}

# 2) Download aria2 release to %TEMP%
$Aria2Url = "https://github.com/aria2/aria2/releases/download/release-1.36.0/aria2-1.36.0-win-64bit-build1.zip"
$ZipPath  = "$env:TEMP\aria2_temp.zip"
Write-Host "`nDownloading aria2 from $Aria2Url..."
Invoke-WebRequest -Uri $Aria2Url -OutFile $ZipPath
Write-Host "Download complete: $ZipPath"

# 3) Unzip to destination folder
Write-Host "`nExtracting zip file..."
Expand-Archive -Path $ZipPath -DestinationPath $destFolder -Force
Write-Host "Extraction complete."

# 4) Move the extracted files from subfolder to C:\Tools\aria2
#    Typically, they are in: C:\Tools\aria2\aria2-1.36.0-win-64bit-build1
$extractedFolder = Join-Path $destFolder "aria2-1.36.0-win-64bit-build1"
if (Test-Path $extractedFolder) {
    Move-Item -Path (Join-Path $extractedFolder "*") -Destination $destFolder -Force
    Remove-Item -Path $extractedFolder -Recurse -Force
    Write-Host "`nMoved extracted files to $destFolder"
} else {
    Write-Host "`nWARNING: $extractedFolder not found. Check the version/paths."
}

# 5) Create aria2.conf with recommended settings
$configFile = Join-Path $destFolder "aria2.conf"
$configContent = @"
# Resume downloads when possible
continue=true

# Parallel connections
max-connection-per-server=10
split=10
min-split-size=20M

# Disable pre-allocation on Windows
file-allocation=none
"@
Write-Host "`nCreating aria2.conf: $configFile"
$configContent | Out-File $configFile -Encoding UTF8
Write-Host "Configuration file created."

# 6) Add C:\Tools\aria2 to the user PATH
#    Change to "Machine" for all users (run as admin if so).
$envScope = "User"
$oldPath = [System.Environment]::GetEnvironmentVariable("Path", $envScope)
if ($oldPath -notlike "*$destFolder*") {
    $newPath = $oldPath + ";$destFolder"
    [System.Environment]::SetEnvironmentVariable("Path", $newPath, $envScope)
    Write-Host "`nAdded '$destFolder' to the PATH ($envScope scope)."
} else {
    Write-Host "`n'$destFolder' is already in PATH."
}

Write-Host "`n=== aria2 installation complete! ==="
Write-Host "Open a NEW Command Prompt or PowerShell and type:"
Write-Host "    aria2c https://example.com/file.iso"
Write-Host "The file will be downloaded into the CURRENT directory."