Automatically update ArcDps and BuildTemplates from deltaconnected for Guild Wars 2

GW2.cmd

::[CmdletBinding(SupportsShouldProcess)]
::# Update these values for wherever you have GW2 installed.
::# The arguments only get passed if you do not have a Settings.json file
::Param(
::    $Gw2Root = 'M:\Guild Wars 2',
::    $Gw2Exe = 'Gw2-64.exe',
::    $Gw2Arguments = @(
::        '-mapLoadinfo'
::        '-bmp'
::        '-fps','144'
::    )
::)

::<#
@ECHO OFF
REM https://stackoverflow.com/questions/3759456/create-a-executable-exe-file-from-powershell-script#answer-4629494
REM https://blogs.msdn.microsoft.com/zainala/2008/08/05/using-0-inside-the-batch-file-to-get-the-file-info/
REM https://gist.github.com/TheIncorrigible1/b9dd802e56e5889a62d1c1d3bc9761e6

SET "pwsh=%SYSTEMROOT%\System32\WindowsPowerShell\v1.0\powershell.exe"
SET "args=-NoProfile -NoLogo -ExecutionPolicy Bypass -Command"
SET "cmd="@(Get-Content -Path '%~f0') -replace '^^::'^|Set-Content -Path '%~dpn0.ps1';. '%~dpn0.ps1' %*""

%pwsh% %args% %cmd%

DEL "%~dpn0.ps1" /Q /F
EXIT
::#>

$ErrorActionPreference = [System.Management.Automation.ActionPreference]::SilentlyContinue
If (Get-Process -Name $Gw2Exe) { Exit }

$RemoteHash = (((Invoke-WebRequest -Uri 'https://www.deltaconnected.com/arcdps/x64/d3d9.dll.md5sum' |
    Select-Object -ExpandProperty 'RawContent') -split "`n" |
    Where-Object {$_})[-1] -split '\s')[0]
If ($RemoteHash.Length -ne 32)
{
    Write-Host "Invalid MD5 hash: $RemoteHash`n"
    Pause
    Exit
}

#region ArcDPS/BuildTemplates download
$ArcDPS_Path = "$Gw2Root\bin64\d3d9.dll"
$ArcDPS_URL = 'https://www.deltaconnected.com/arcdps/x64/d3d9.dll'

$BuildTemplates_Path = "$Gw2Root\bin64\d3d9_arcdps_buildtemplates.dll"
$BuildTemplates_URL = 'https://www.deltaconnected.com/arcdps/x64/buildtemplates/d3d9_arcdps_buildtemplates.dll'

If (Test-Path -Path $ArcDPS_Path)
{
    If ((Get-FileHash -Path $ArcDPS_Path -Algorithm 'MD5').Hash -ne $RemoteHash)
    {
        Write-Host 'ArcDPS is out-of-date.'

        Rename-Item -Path $ArcDPS_Path -NewName "$ArcDPS_Path.bak" -Force
        Rename-Item -Path $BuildTemplates_Path -NewName "$BuildTemplates_Path.bak" -Force

        Invoke-WebRequest -Uri $ArcDPS_URL -OutFile $ArcDPS_Path
        Invoke-WebRequest -Uri $BuildTemplates_URL -OutFile $BuildTemplates_Path

        Write-Host 'ArcDPS install complete.'
    }
    Else
    {
        Write-Host 'ArcDPS is up-to-date.'
    }
}
Else
{
    Invoke-WebRequest -Uri $ArcDPS_URL -OutFile $ArcDPS_Path
    Invoke-WebRequest -Uri $BuildTemplates_URL -OutFile $BuildTemplates_Path

    Write-Host 'ArcDPS install complete.'
}
#endregion

#region Start GW2
$StartParams = @{ 'FilePath' = "$Gw2Root\$Gw2Exe" }
If (-not (Test-Path -Path "$Env:AppData\Guild Wars 2\Settings.json")) { $StartParams['ArgumentList'] = $Gw2Arguments }
Start-Process @StartParams
#endregion

Forked just for backup