Stop-Process -Name "sublime_text" -Force -ErrorAction SilentlyContinue
Set-Location -Path "C:\Program Files\Sublime Text" -ErrorAction Stop

$hash = Get-FileHash .\sublime_text.exe -Algorithm MD5
if ($hash.Hash -ne "671B865FBDE25CDCBD0144D3E7BAEA31") {
    exit
}

function Write-Bytes {
    param (
        [string]$file,
        [int64]$offset,
        [byte[]]$bytes
    )

    $stream = [System.IO.File]::Open($file, [System.IO.FileMode]::Open, [System.IO.FileAccess]::Write)
    $stream.Seek($offset, [System.IO.SeekOrigin]::Begin) > $null
    $stream.Write($bytes, 0, $bytes.Length)
    $stream.Close()
}

Write-Bytes -file "C:\Program Files\Sublime Text\sublime_text.exe" -offset 0x000318AA -bytes @(0x90, 0x90, 0x90, 0x90, 0x90) # invalidate1
Write-Bytes -file "C:\Program Files\Sublime Text\sublime_text.exe" -offset 0x000318C3 -bytes @(0x90, 0x90, 0x90, 0x90, 0x90) # invalidate2
Write-Bytes -file "C:\Program Files\Sublime Text\sublime_text.exe" -offset 0x000A85E5 -bytes @(0x48, 0x31, 0xC0, 0xC3) # license_notification
Write-Bytes -file "C:\Program Files\Sublime Text\sublime_text.exe" -offset 0x000A891C -bytes @(0x48, 0x31, 0xC0, 0xC3) # license_check.2
Write-Bytes -file "C:\Program Files\Sublime Text\sublime_text.exe" -offset 0x000AA0DC -bytes @(0x48, 0x31, 0xC0, 0x48, 0xFF, 0xC0, 0xC3) # server_validate_4199_4200

Write-Output "Modifications complete."