Multi-Stream ICA

Citrix Workspace App

Supported on: All Citrix Workspace supported platforms

Description

Use this policy to configure Multi-Stream ICA settings. This feature is enabled by default.

Registry

HKCU Software\Policies\Citrix\ICA Client\Engine\Lockdown Profiles\All Regions\Lockdown\Network\Multi-Stream

Value name: MSIEnabled

Enabled: MSIEnabled = True

Disabled: MSIEnabled = 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: Multi-Stream ICA
; State: Enabled
; Supported on: All Citrix Workspace supported platforms

[HKEY_CURRENT_USER\Software\Policies\Citrix\ICA Client\Engine\Lockdown Profiles\All Regions\Lockdown\Network\Multi-Stream]
"MSIEnabled"="True"

PowerShell

# Exported from gporais.com
# Policy: Multi-Stream ICA
# State: Enabled
# Supported on: All Citrix Workspace supported platforms

$path = 'HKCU:\Software\Policies\Citrix\ICA Client\Engine\Lockdown Profiles\All Regions\Lockdown\Network\Multi-Stream'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'MSIEnabled' -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: Multi-Stream ICA
# 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 'HKCU:\Software\Policies\Citrix\ICA Client\Engine\Lockdown Profiles\All Regions\Lockdown\Network\Multi-Stream' -Name 'MSIEnabled' -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: Multi-Stream ICA
# State: Enabled
# Supported on: All Citrix Workspace supported platforms

$path = 'HKCU:\Software\Policies\Citrix\ICA Client\Engine\Lockdown Profiles\All Regions\Lockdown\Network\Multi-Stream'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'MSIEnabled' -Value 'True' -Type String

SCCM CI

# Exported from gporais.com
# Policy: Multi-Stream ICA
# 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: Multi-Stream ICA
# 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 'HKCU:\Software\Policies\Citrix\ICA Client\Engine\Lockdown Profiles\All Regions\Lockdown\Network\Multi-Stream' -Name 'MSIEnabled' -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: Multi-Stream ICA
# State: Enabled
# Supported on: All Citrix Workspace supported platforms

$path = 'HKCU:\Software\Policies\Citrix\ICA Client\Engine\Lockdown Profiles\All Regions\Lockdown\Network\Multi-Stream'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'MSIEnabled' -Value 'True' -Type String