Enable application PreLaunch

Supported on: All Citrix Workspace supported platforms

Description

Pre-launch allows the application and desktop sessions to start faster. This is done by launching the resource on first access and making it more responsive on subsequent access. When you set the policy to Enabled, the Session/Application Pre-launch functionality is enabled. When you set the policy to Disabled, the Session/Application Pre-launch functionality is disabled.

Registry

HKLM SOFTWARE\Policies\Citrix\Dazzle

Value name: EnablePreLaunch

Enabled: EnablePreLaunch = true

Disabled: EnablePreLaunch = false

REG Builder

BETA

Configure the state and elements to generate .reg, PowerShell, Intune, and SCCM outputs.

These exports replicate the policy's registry effect. Editing the registry directly is not the same as applying the GPO through the management console (no gpupdate, no central reporting). Test before production; HKLM changes require administrator rights.

Not configured Enabled Disabled

.reg file

Windows Registry Editor Version 5.00

; Exported from gporais.com
; Policy: Enable application PreLaunch
; State: Enabled
; Supported on: All Citrix Workspace supported platforms

[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Citrix\Dazzle]
"EnablePreLaunch"="true"

PowerShell

# Exported from gporais.com
# Policy: Enable application PreLaunch
# State: Enabled
# Supported on: All Citrix Workspace supported platforms

$path = 'HKLM:\SOFTWARE\Policies\Citrix\Dazzle'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'EnablePreLaunch' -Value 'true' -Type String

Intune XML

No direct Policy CSP / OMA-URI mapping for this policy. Use the Intune Remediation tab, or ingest the ADMX in Intune.

Intune Remediation

# === Detection script ===
# Exported from gporais.com
# Policy: Enable application PreLaunch
# State: Enabled
# Supported on: All Citrix Workspace supported platforms

function Test-RegistryValue {
  param(
    [Parameter(Mandatory = $true)][string]$Path,
    [Parameter(Mandatory = $true)][string]$Name,
    [object]$Expected,
    [ValidateSet('String', 'DWord', 'MultiString')][string]$Kind = 'String',
    [switch]$Absent
  )

  try {
    $item = Get-ItemProperty -LiteralPath $Path -Name $Name -ErrorAction Stop
  } catch {
    return $Absent.IsPresent
  }

  if ($Absent.IsPresent) { return $false }
  $actual = $item.$Name

  if ($Kind -eq 'DWord') { return ([int64]$actual) -eq ([int64]$Expected) }
  if ($Kind -eq 'MultiString') {
    $actualValues = @($actual)
    $expectedValues = @($Expected)
    if ($actualValues.Count -ne $expectedValues.Count) { return $false }
    for ($i = 0; $i -lt $expectedValues.Count; $i++) {
      if ([string]$actualValues[$i] -ne [string]$expectedValues[$i]) { return $false }
    }
    return $true
  }

  return [string]$actual -eq [string]$Expected
}

$checks = @(
  (Test-RegistryValue -Path 'HKLM:\SOFTWARE\Policies\Citrix\Dazzle' -Name 'EnablePreLaunch' -Expected 'true' -Kind String)
)

if ($checks -notcontains $false) {
  Write-Output 'Compliant'
  exit 0
}

Write-Output 'Non-compliant'
exit 1

# === Remediation script ===
# Exported from gporais.com
# Policy: Enable application PreLaunch
# State: Enabled
# Supported on: All Citrix Workspace supported platforms

$path = 'HKLM:\SOFTWARE\Policies\Citrix\Dazzle'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'EnablePreLaunch' -Value 'true' -Type String

SCCM CI

# Exported from gporais.com
# Policy: Enable application PreLaunch
# State: Enabled
# Supported on: All Citrix Workspace supported platforms
# SCCM Configuration Item guidance:
# Create a Configuration Item of type "Setting: Script".
# Discovery script: use the Detection script below.
# Remediation script: use the Remediation script below.
# Compliance rule: the Discovery script output equals 'Compliant'.

# === Detection script ===
# Exported from gporais.com
# Policy: Enable application PreLaunch
# State: Enabled
# Supported on: All Citrix Workspace supported platforms

function Test-RegistryValue {
  param(
    [Parameter(Mandatory = $true)][string]$Path,
    [Parameter(Mandatory = $true)][string]$Name,
    [object]$Expected,
    [ValidateSet('String', 'DWord', 'MultiString')][string]$Kind = 'String',
    [switch]$Absent
  )

  try {
    $item = Get-ItemProperty -LiteralPath $Path -Name $Name -ErrorAction Stop
  } catch {
    return $Absent.IsPresent
  }

  if ($Absent.IsPresent) { return $false }
  $actual = $item.$Name

  if ($Kind -eq 'DWord') { return ([int64]$actual) -eq ([int64]$Expected) }
  if ($Kind -eq 'MultiString') {
    $actualValues = @($actual)
    $expectedValues = @($Expected)
    if ($actualValues.Count -ne $expectedValues.Count) { return $false }
    for ($i = 0; $i -lt $expectedValues.Count; $i++) {
      if ([string]$actualValues[$i] -ne [string]$expectedValues[$i]) { return $false }
    }
    return $true
  }

  return [string]$actual -eq [string]$Expected
}

$checks = @(
  (Test-RegistryValue -Path 'HKLM:\SOFTWARE\Policies\Citrix\Dazzle' -Name 'EnablePreLaunch' -Expected 'true' -Kind String)
)

if ($checks -notcontains $false) {
  Write-Output 'Compliant'
  exit 0
}

Write-Output 'Non-compliant'
exit 1

# === Remediation script ===
# Exported from gporais.com
# Policy: Enable application PreLaunch
# State: Enabled
# Supported on: All Citrix Workspace supported platforms

$path = 'HKLM:\SOFTWARE\Policies\Citrix\Dazzle'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'EnablePreLaunch' -Value 'true' -Type String