https://webworks.com/products/epublisher/download?version=2025.1

# Must run elevated
& "C:\Deploy\WebWorks ePublisher Express (64-bit).2025.1.4678.exe" /S

& "C:\Deploy\WebWorks ePublisher Express (64-bit).2025.1.4678.exe" /S /D=D:\Apps\WebWorks

C:\Program Files\WebWorks\ePublisher\2025.1\
    ePublisher Express\        <- product binaries + Uninstall.exe
    Helpers\  Adapters\  Formats\  Transit\  Rasterizer\   (shared)

• Registers the product under the Windows Uninstall key (see the appendix).
• Adds Windows Defender exclusions for the product executables.
• Installs or refreshes the WebWorks Rasterizer printer and the Transit helper.

$installer = "C:\Deploy\WebWorks ePublisher Express (64-bit).2025.1.4678.exe"
$log       = "C:\Deploy\Logs\epx-install-$env:COMPUTERNAME.log"

$p = Start-Process -FilePath $installer -ArgumentList '/S' -Wait -PassThru -Verb RunAs
"$(Get-Date -Format s)  exit=$($p.ExitCode)" | Out-File $log -Append

if ($p.ExitCode -ne 0) { throw "ePublisher Express install failed (exit $($p.ExitCode))" }

(Start-Process "C:\Deploy\WebWorks ePublisher Express (64-bit).<version.build>.exe" `
  -ArgumentList '/S /UPDATE' -Wait -PassThru -Verb RunAs).ExitCode

• Upgrade. Removes the currently-installed version (supported back to installations of 2021.1), then installs the new version. Files dropped between versions do not linger, unlike a plain /S overwrite. For installations older than 2021.1, play it safe: uninstall manually first via Windows Settings > Apps (Add or Remove Programs), then run a normal silent install (Section 1.2).
• Repair. Re-running the same build with /S /UPDATE removes it and freshly reinstalls it.
• Fresh install. On a machine with nothing installed, the uninstall step is a no-op and /S /UPDATE behaves exactly like /S. One command is therefore valid for every machine, whatever its current state, which is what makes the all-products script in Section 2.4 possible.
• Install location. A same-version repair stays in the existing location automatically. When upgrading across versions from a custom install root, append /D=<root> (last argument, unquoted) to be explicit, since the new version cannot always discover the old version's custom root.
• Running instances of ePublisher products are closed automatically before the uninstall begins. Have users save their work before a deployment window.
• /UPDATE without /S is ignored. An interactive run shows the normal Repair or Uninstall chooser instead.

& "C:\Deploy\WebWorks ePublisher Express (64-bit).2025.1.4678.exe" /S

$uninstall = "C:\Program Files\WebWorks\ePublisher\2025.1\ePublisher Express\Uninstall.exe"
$newSetup  = "C:\Deploy\WebWorks ePublisher Express (64-bit).2025.1.4678.exe"

# 1) Remove the existing version (blocking)
$tmp = "$env:TEMP\epx-uninstall.exe"
Copy-Item $uninstall $tmp -Force
Start-Process $tmp -ArgumentList '/S', "_?=$(Split-Path $uninstall)" -Wait -Verb RunAs

# 2) Install the new version
Start-Process $newSetup -ArgumentList '/S' -Wait -Verb RunAs

# =============================================================================
# WebWorks ePublisher -- silent install / upgrade, all products
# Requires installers with the /UPDATE switch (ePublisher 2025.1 and later).
# Run from an ELEVATED PowerShell prompt.
#   - Fresh machine: performs first-time installs.
#   - Machine with ePublisher installed: cleanly upgrades/repairs each product.
# =============================================================================

if (-not ([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdentity]::GetCurrent()
        ).IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)) {
    throw 'Run this script from an elevated (Administrator) PowerShell prompt.'
}

$InstallerDir = 'C:\Deploy'      # folder containing the downloaded installer EXEs
$Build        = '2025.1.0000'    # <version.build> exactly as it appears in the filenames
$Arch         = '64-bit'         # or '32-bit'

# ---- Products to deploy. Comment out (#) any product you do not use. ----
# NOTE: 'Legacy Formats' requires Designer or AutoMap and must stay LAST.
$Products = @(
    'Express'
    'Designer'
    'AutoMap'
    'Legacy Formats'             # requires Designer or AutoMap above
)

foreach ($Product in $Products) {
    $exe = Join-Path $InstallerDir "WebWorks ePublisher $Product ($Arch).$Build.exe"
    if (-not (Test-Path $exe)) {
        Write-Warning "Installer not found, skipping: $exe"
        continue
    }
    Write-Host "Installing/updating $Product ..."
    $p = Start-Process -FilePath $exe -ArgumentList '/S /UPDATE' -Wait -PassThru
    if ($p.ExitCode -ne 0) {
        throw "$Product installer failed with exit code $($p.ExitCode) -- stopping."
    }
    Write-Host "  $Product OK."
}
Write-Host 'All selected products are installed and up to date.'

• Product order matters only for Legacy Formats. It depends on configuration owned by Designer or AutoMap, so keep it last and deploy it only alongside one of them.
• Custom install root: change the argument string to '/S /UPDATE /D=<root>'. Keep /D last and unquoted inside the string (passing it as a single string preserves the unquoted form NSIS requires, even for paths with spaces).

# .NET Framework >= 4.7.2  (release >= 461808)
(Get-ItemProperty 'HKLM:\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full' -Name Release).Release -ge 461808

# Java present (registry)
@('HKLM:\SOFTWARE\JavaSoft\JDK','HKLM:\SOFTWARE\JavaSoft\JRE',
  'HKLM:\SOFTWARE\JavaSoft\Java Development Kit','HKLM:\SOFTWARE\JavaSoft\Java Runtime Environment') |
  Where-Object { Test-Path $_ }

# Ghostscript present
Test-Path 'HKLM:\SOFTWARE\GPL Ghostscript'

• the organization's Contract ID,
• their email address, and
• the machine name.

C:\Program Files\WebWorks\ePublisher\2025.1\ePublisher Express\Uninstall.exe

& "C:\Program Files\WebWorks\ePublisher\2025.1\ePublisher Express\Uninstall.exe" /S

$uninstall = "C:\Program Files\WebWorks\ePublisher\2025.1\ePublisher Express\Uninstall.exe"
$tmp = "$env:TEMP\epx-uninstall.exe"
Copy-Item $uninstall $tmp -Force
Start-Process $tmp -ArgumentList '/S', "_?=$(Split-Path $uninstall)" -Wait -Verb RunAs

(Get-ItemProperty 'HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\WebWorks ePublisher Express x64' `
  -Name UninstallString).UninstallString

1. Pre-provision .NET 4.7.2+ (always); add Java if users generate PDF / Eclipse / Oracle / Java Help output or consume DITA-XML input, and Ghostscript if users publish Word or FrameMaker documents containing vector or PostScript graphic facets (Section 3).
2. Push the 64-bit installer elevated with /S (plus /D= if relocating) (Section 1).
3. Verify exit code 0.
4. Have each user complete one-time activation with the Contract ID, email, and machine name (Section 4).
5. For upgrades: /S /UPDATE with 2025.1+ installers (Section 2.1), or uninstall then install with older installers (Section 2.3). The all-products script in Section 2.4 covers both install and upgrade.
6. Before decommissioning, have users Unregister to free seats before uninstalling, or ask WebWorks Support to release seats if already uninstalled (Section 5).

• NSIS Documentation: command-line options (/S, /D, /NCRC, uninstaller _?=) and silent installer behavior.